Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017) from Dibba Sea, UAE, Gulf of Oman by Dr-Norman Khalaf

Ola Khalaf’s Nudibranch Sea Slug (Diaphorodoris olakhalafi Khalaf, 2017) from Dibba Sea, East Coast of the United Arab Emirates, Gulf of Oman )2017 ، ‫بُزاق بحر عُال خلف عاري الخياشيم ( ديافورودوريس عُال خلفي خلف‬ ‫ خليج عُمان‬، ‫ الساحل الشرقي لدولة اإلمارات العربية ال ُمتحدة‬، ‫من بحر دِبا‬ By: Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa Khalaf-Prinz Sakerfalke von Jaffa & Ola Mostafa Esmail Mostafa Khalaf (Photography)

Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017) from Dibba Blocks, Al Kuhouf Marine Reserve in Dibba Sea, at a depth of 16 meters. Length: 1.00 cm. Photo by Ola Mostafa Khalaf. 17.02.2018. http://nudibranch-uae.webs.com/diaphorodoris-olakhalafi & https://www.flickr.com/photos/50022881@N00/40114975350/

Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

‫‪2‬‬

‫‪On Monday 26.06.2017, my wife the PADI Dive Instructor Ola Mostafa Khalaf managed‬‬ ‫‪to shoot several photographs of Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafi‬‬ ‫‪Khalaf, 2017) from the Reef Blocks site in Dibba Sea, at a depth of 19 meters; and again‬‬ ‫‪managed to shoot several photos of the same species on Saturday 17.02.2018, from‬‬ ‫‪Dibba Blocks, Al Kuhouf Marine Reserve in Dibba Sea, at a depth of 16 meters.‬‬

‫عال خلف عاري الخياشيم (باإلنجيليزية ‪ )Ola Khalaf’s Nudibranch:‬أو بُزاق بحر‬ ‫بُزاق بحر ُ‬ ‫خورفكان األبيض عاري الخياشيم (باإلنجيليزية ‪ )Khorfakkan White Dorid Nudibranch:‬وإسمه‬ ‫‪Diaphorodoris olakhalafi‬‬ ‫العلمي ديافورودوريس عُال خلفي خلف ‪( 2017 ،‬باإلنجيليزية ‪:‬‬ ‫‪( )Khalaf, 2017‬ويكيبيديا العربية ؛ خلف ‪ ،‬مارس ‪. )2018‬‬ ‫عال خلف عاري الخياشيم من الحيوانات الرخوية البطنية القدم البحرية ‪ ،‬والتي تتبع عائلة‬ ‫بُزاق بحر ُ‬ ‫كاليسيدوريديدي )‪ (Calycidorididae‬وهي إحدى أنواع البُزاق البحري ‪ ،‬والتي تعيش في المناطق‬ ‫عمان ‪ ،‬وتم تسجيلها من الساحل الشرقي لدولة اإلمارات العربية ال ُمتحدة ‪،‬‬ ‫ال ُمرجانية والصخرية في خليج ُ‬ ‫والساحل الشرقي ل ُمحافظة ُمسندم العُمانية (ويكيبيديا العربية ؛ خلف ‪ ،‬مارس ‪. )2018‬‬

‫التسمية ال ِعلمية‬ ‫قام عالم الحيوان الفلسطيني األلماني أ‪ .‬د‪ .‬نعمان (نورمان) علي خلف اليافاوي بدراسة وتصنيف وإعطاء‬ ‫اإلسم العلمي لنوعا ً جديدا ً وغير ُمسمى من بُزاق البحر ‪ .‬وتمت تسميته علميا ً " ديافورودوريس ُعال خلفي‬ ‫خلف ‪ . (Diaphorodoris olakhalafi Khalaf, 2017) " 2017 ،‬وقد تمت تسمية إسم النوع‬ ‫‪ olakhalafi‬باللغة الالتينية ‪ ،‬نسبة إلى ُمدربة الغوص وأستاذة التصوير الفوتوغرافي التحت مائي الكابتن‬ ‫عال خلف" (زوجة ال ُمصنف) كهدية خاصة بعد عشرين سنة من الزواج (ويكيبيديا العربية ؛ خلف ‪ ،‬مارس‬ ‫" ُ‬ ‫‪. )2018‬‬

‫الصفات الخارجية‬ ‫يُعتبر هذا النوع من البُزاق البحري صغيرا ً للغاية حيث يصل طوله ما بين ‪ 10 – 5‬ملليمترات ‪ .‬ويكون شكل‬ ‫الجسم ممدودا ً بيضاوي الشكل وأبيض اللون ‪ ،‬وتكون نهايتي جسمها ُمدورة غير حادة ‪ .‬وتُغطي العباءة‬ ‫الجسمية ُحديبات أو بُروزات صغيرة مخروطية الشكل ذات لون أبيض وأصفر ‪ .‬وتوجد ‪ 5‬إلى ‪ 6‬خياشيم‬ ‫عارية على السطح الظهري للجسم ‪ .‬وله قرني إستشعار حسية ذات لون بُرتقالي ‪ -‬أحمر ‪ .‬ويوجد شريط‬ ‫أصفر اللون على حواف العباءة الجسمية والقدم (ويكيبيديا العربية ؛ خلف ‪ ،‬مارس ‪. )2018‬‬

‫اإلنتشار‬ ‫عمان حيث تم تسجيله في المناطق ال ُمرجانية والصخرية في بحر خورفكان‬ ‫إنتشار هذا النوع محدود في خليج ُ‬ ‫والفُجيرة ودبا على الساحل الشرقي لدولة اإلمارات العربية ال ُمتحدة ‪ ،‬وكذلك على الساحل الشرقي ل ُمحافظة‬ ‫ُمسندم العُمانية على أعماق من ‪ 20 – 2‬مترا ً (ويكيبيديا العربية ؛ خلف ‪ ،‬مارس ‪.)2018‬‬ ‫‪Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019‬‬

‫الغذاء‬ .)2018 ‫ مارس‬، ‫يتغذى بُزاق البحر على الحيوانات البحرية الالفقارية الصغيرة (ويكيبيديا العربية ؛ خلف‬

Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017) from Dibba Blocks, Al Kuhouf Marine Reserve in Dibba Sea, at a depth of 16 meters. Length: 1.00 cm Photo by Ola Mostafa Khalaf. 17.02.2018. http://nudibranch-uae.webs.com/diaphorodoris-olakhalafi & https://www.flickr.com/photos/50022881@N00/27052749297/

Ola Khalaf’s Nudibranch Diaphorodoris olakhalafi (Khalaf, 2017) is a species of dorid nudibranch in the family Calycidorididae. It is found in the Gulf of Oman off the eastern coasts of the United Arab Emirates and the Musandam Governorate of Oman (English Wikipedia; Khalaf-von Jaffa, March 2018). Ola-Khalaf-Nacktkiemer Diaphorodoris olakhalafi (Khalaf, 2017) ist eine Art aus der Unterordnung der Nacktkiemer, die zu den Hinterkiemer schnecken und somit zum Stamm der Weichtiere gehört. Die Nacktkiemer wurden im Volksmund auch als Unterwasser-Nacktschnecken bezeichnet. Diaphorodoris olakhalafi lebt in flachen Gewässern im Golf von Oman (German Wikipedia; Khalaf-von Jaffa, March 2018). Diaphorodoris olakhalafi (Khalaf, 2017) est une espèce de limaces de mer, de la famille des Calycidorididae et de la classe des Opisthobranchia. Les nudibranches sont Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

communément appelés limaces de mer. Diaphorodoris olakhalafi vit dans les eaux peu profondes du golfe d'Oman (French Wikipedia; Khalaf-von Jaffa, March 2018).

Keywords: Gastropoda, Nudibranchia, Onchidorididae, Diaphorodoris olakhalafi, New Species, Nudibranch, Dorid Nudibranch, Sea Slug, Khorfakkan White Dorid Nudibranch, Ola Khalaf’s Nudibranch, Sea of Khorfakkan, Sea of Dibba, Emirate of Sharjah, Emirate of Fujairah, Khorfakkan, Dibba, Fujairah, United Arab Emirates, Musandam, Sultanate of Oman, Gulf of Oman, Arabian Sea, Indian Ocean, Near East, Middle East (Khalaf-von Jaffa, May 2017, March 2018).

Classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda Subclass: Opisthobranchia Order: Nudibranchia Suborder: Doridina Superfamily: Anadoridoidea Family: Onchidorididae Genus: Diaphorodoris Species: Diaphorodoris olakhalafi Khalaf, 2017 (Khalaf-von Jaffa, May 2017, March 2018).

Description and Distinctive Features Length of Diaphorodoris olakhalafi is between 5 - 10 mm. General body-colour is white. Body elongate-elliptical, bluntly rounded at both ends. The white mantle is ovate with the posterior end of the foot extending behind the end of the mantle. Foot produced behind in a fairly long tail, the anterior end abruptly rounded and simply labiate. The mantle is covered sparsely with small conical tubercles and the five or six gills are attached in a common pocket. The colour of the conical tubercles is white or yellow. Oral tentacles broad lobiform, with a slit-like mouth between them. The gills and rhinophores are orange-red. Rhinophore-sheath with smooth margin. Branchial plumes 5 - 6, small, simply pinnate, completely retractile within a cavity with smooth margin. Integument with spicules. There is a distinctive yellow band at the edge of both the mantle and the foot (Khalaf-von Jaffa, May 2017, March 2018).

Size Diaphorodoris olakhalafi grows between 5 - 10 mm. long (Khalaf-von Jaffa, May 2017, March 2018).

Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

Diet This species feeds on encrusting colonial bryozoans (Khalaf-von Jaffa, May 2017, March 2018).

Habitat Diaphorodoris olakhalafi was found in sea water in a depth between 2 – 20 meters (Khalafvon Jaffa, May 2017, March 2018).

Distribution The species Diaphorodoris olakhalafi lives in Khorfakkan & Dibba Sea, eastern coast of the United Arab Emirates, and the eastern coast of the Musandam Sea, Sultanate of Oman, Gulf of Oman, Arabian Sea, Indian Ocean (Khalaf-von Jaffa, May 2017, March 2018).

Conservation The species Diaphorodoris olakhalafi is endemic to the Gulf of Oman region. This species is rare and must be protected (Khalaf-von Jaffa, May 2017, March 2018).

The Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafiKhalaf, 2017) from the Reef Blocks site in Dibba Sea, in a depth of 19 meters. Length: 5 mm. Photo by Ola Mostafa Khalaf.26.06.2017. http://nudibranch.webs.com/diaphorodoris-olakhalafi & https://en.wikipedia.org/wiki/Diaphorodoris_olakhalafi#/media/File:Diaphorodoris_olakhal afi_2.jpg

Etymology/Derivation of the Scientific Name The scientific name Diaphorodoris: Diaphanous Doris. From Medieval Latin diaphanus, from Greek diaphanēs, from dia ‘through’ + phainein ‘to show’. Doris in Greek mythology, wife of Nereo, nymph of the waters and mother of Nereids; and olakhalafi is Latin for my wife the Diver & Underwater Photographer “Ola Khalaf” (born 1975) (Khalaf-von Jaffa, May 2017, March 2018). This new Khorfakkan Nudibranch species was classified and named by the PalestinianGerman Zoologist Prof. Dr. Norman Ali Bassam Khalaf-von Jaffa in May 2017, and the specific name ‘olakhalafi’ was named after his beloved wife “Ola Mostafa Esmail Mostafa Khalaf” (born in Sidon, Lebanon in 1975) (Khalaf-von Jaffa, May 2017, March 2018). Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

My beloved wife is an active diver and PADI Dive Instructor and is a professional underwater photographer. Diving is her main hobby and passion. She photographed and published many of her underwater photos, and she is contributing to our knowledge of the magnificent creatures living in our seas and oceans. The naming of this new species is a special gift after 20 years of marriage (Khalaf-von Jaffa, May 2017, March 2018).

References and Internet Websites 500px. Nudibranch Diaphorodoris olakhalafi Khalaf, 2017. https://500px.com/photo/219953551/nudibranch-diaphorodoris-olakhalafi-khalaf2017-by-prof-dr-norman-ali-bassam-khalaf Al Mehairi, Captain Abdulla (Instagram: Nudibranchhunter). (12 March 2017). : Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017). Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

https://www.instagram.com/p/BRhoE0agu5V/ Baba, K. (1949). Opisthobranchia of Sagami Bay collected by His Majesty The Emperor of Japan. 194 pp., 50 pls. Iwanami Shoten, Tokyo. Bertsch, H. & A. Kerstitch (1984). Distribution and radular morphology of various nudibranchs (Gastropoda: Opisthobranchia) from the Gulf of California, Mexico. The Veliger, 26: 264-273. BioLib (2017). Taxon Profile. Species Khorfakkan White Dorid Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017). https://www.biolib.cz/en/taxon/id1222805/ Bouchet, P. (2015). Onchidorididae Gray, 1827. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=175 on 2016-04-13 Bouchet P., Rocroi J.-P., Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. (2005). Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology (Hackenheim, Germany: ConchBooks) 47 (1-2): 1-397. ISBN 3925919724. ISSN 0076-2997.

The Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafiKhalaf, 2017) from the Reef Blocks site in Dibba Sea, in a depth of 19 meters. Length: 5 mm. Photo by Ola Mostafa Khalaf.26.06.2017. http://nudibranch.webs.com/diaphorodoris-olakhalafi & https://www.flickr.com/photos/50022881@N00/35419257590 Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

The Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafiKhalaf, 2017) from the Reef Blocks site in Dibba Sea, in a depth of 19 meters. Length: 5 mm. Photo by Ola Mostafa Khalaf.26.06.2017. http://nudibranch.webs.com/diaphorodoris-olakhalafi & https://commons.wikimedia.org/wiki/File:Diaphorodoris_olakhalafi_1.jpg

Calado, R., Vitorino, A., Dionisio, G. and Dinis, M.T. (2006). A recirculated maturation system for marine ornamental decapods. Aquaculture. 263: 68-74. Debelius, H. & Kuiter, R.H. (2007). Nudibranchs of the world. Conch Books, Frankfurt, 360 pp. ISBN 978-3-939767-06-0. EOL (Encyclopedia of Life). (2017). Ola Khalaf's Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017). http://www.eol.org/collections/131000 Flickr. Diaphorodoris olakhalafi. https://www.flickr.com/photos/50022881@N00/35675735511/in/photolist-WydpGMWig7Ry-WuARBy-WmxLg2-Wmxtf8-VXSSCQ-VgXWJQ-VjCQk6-VXSXi1-WmxJiK Flickr. Diaphorodoris olakhalafi. https://www.flickr.com/photos/50022881@N00/35675792751 Fotocommunity. Ola-Khalaf-Nacktkiemer (Diaphorodoris olakhalafi Khalaf, 2017). http://www.fotocommunity.de/photo/ola-khalaf-nacktkiemer-di-dr-norman-alikhalaf-von-/39997375 Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

Gbif. Diaphorodoris olakhalafi. https://www.gbif.org/species/9487636 Gohar, H. A. F., & I. A. Aboul-Ela (1957). The development of three chromodorids (with the description of a new species). Publications of the Marine Biological Station, Al-Ghardaqa, Egypt, 9: 203-228, pls. 1-5.

The Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafiKhalaf, 2017) from the Reef Blocks site in Dibba Sea, in a depth of 19 meters. Length: 5 mm. Photo by Ola Mostafa Khalaf.26.06.2017. http://nudibranch.webs.com/diaphorodoris-olakhalafi & https://commons.wikimedia.org/wiki/File:Diaphorodoris_olakhalafi_4.jpg & https://de.wikipedia.org/w/index.php?title=Nacktkiemer&stable=0#/media/File:Diaphorod oris_olakhalafi_4.jpg

Gosliner, T.M., Behrens, D.W. & Valdes, A. (2008). Indo-Pacific Nudibranchs and seaslugs. A field guide to the world's most diverse fauna. Sea Challengers Natural History Books, Washington, 426 pp. Gosliner, Terrence M. & Shireen J. Fahey (2011). Previously undocumented diversity and abundance of cryptic species: a phylogenetic analysis of Indo-Pacific Arminidae Rafinesque, 1814 (Mollusca: Nudibranchia) with descriptions of 20 new species of Dermatobranchus. Zoological Journal of the Linnean Society 161: 245–356. http://onlinelibrary.wiley.com/doi/10.1111/j.1096-3642.2010.00649.x/full Hallas J. M. & Gosliner T. M. (2015). Family matters: The first molecular phylogeny of Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

the Onchidorididae Gray, 1827 (Mollusca, Gastropoda, Nudibranchia). Molecular Phylogenetics and Evolution 88: 16-27. doi:10.1016/j.ympev.2015.03.015. Indonesia Nudibranchs & Sea Slugs. http://www.nudibranch.org/Indonesia%20Sea%20Slugs/html/nudibranchs.html Inskip and Gillett. (2005). Checklist of CITES Species and Annotated CITES Appendices and Reservations. Available at: http://www.cites.org/common/resources/2005_CITES_Checklist.pdf. Jaber, Mohamed (March 2018). Diaphorodoris olakhalafi. Facebook. 13 March 2018. https://www.facebook.com/photo.php?fbid=1584987374902675&set=a.60587041614771 4.1073741848.100001742832652&type=3&theater Jeffords, Jeffrey. (2005). Jeff’s Nudibranch Site and Coral Reef Gallery. Available at: http://www.divegallery.com/shrimp_ambonian.htm. Johnson, Rebecca Fay & Terrence M. Gosliner (2012). Traditional Taxonomic Groupings Mask Evolutionary History: A Molecular Phylogeny and New Classification of the Chromodorid Nudibranchs. http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0033479 Khalaf, Norman Ali Bassam (1980). Tabie’t Al-Talawon fi Al-Haywanat (The Colouration of Animals). Al-Biology Bulletin. Number 1. January 1980, Safar 1401. Biological Society, Kuwait University, State of Kuwait. pp. 4-5. (In Arabic). Khalaf, Norman (Translator) (1982). Al-Miah Al-Mulawatha Tohaded Al-Asmak Bi’ilinqiraad (Water Pollution threatens the Fish Fauna with Extinction). Al-Biology Bulletin. Number 18, Third Year, First Semester, Saturday 6.11.1982. Biological Society, Kuwait University, State of Kuwait. pp. 7. (Translation from German into Arabic). Khalaf, N.A.B. (1986). The Schooling of Sumatra Barbs (Barbus tetrazona tetrazona) and Minnows (Phoxinus phoxinus). Dissertation, Master of Science in Ecology, Departments of Zoology and Botany, University of Durham, England. September 1986. pps. 59 + iv. http://etheses.dur.ac.uk/7084/ Khalaf-von Jaffa, Norman Ali Bassam (1992). An Introduction to the Animal Life in Palestine. Gazelle: The Palestinian Biological Bulletin. Bonn-Bad Godesberg, Federal Republic of Germany. Number 30, Tenth Year, October 1992. pp. 1-7. (In Arabic). Khalaf-von Jaffa, Norman Ali Bassam (1994). An Introduction to the Animal Life in Palestine. Shqae’q Al-Nouma’n (Anemone coronaria). A Quarterly Magazine Issued by the Program EAI (Education for Awareness and for Involvement). Environmental Education / Children for Nature Protection. In Cooperation with Dept. of General and Higher Education. P.L.O., Palestine. Number 4. Huzairan (June) 1994. pp. 16-21. (In Arabic). Khalaf, Norman Ali Bassam (2001). The Extinct and Endangered Animals in Palestine. In: Gazelle: The Palestinian Biological Bulletin Home Page. Extinct and Endangered Animals and Reintroduction. http://gazelle.8m.net/photo3.html Khalaf-von Jaffa, Norman Ali (2004). Gazelle: Das Palästinensische Biologische Bulletin. Eine Wissenschaftliche Reise in Palästina, Arabien und Europa zwischen 1983 – 2004. / Gazelle: The Palestinian Biological Bulletin. A Scientific Journey in Palestine, Arabia and Europe between 1983 – 2004. ISBN 3-00-014121-9. Erste Auflage / First Edition, Juli Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

2004: 452 Seiten / Pages. Zweite erweiterte Auflage (Second Extended Edition), August 2004: 460 Seiten / Pages. Norman Ali Khalaf, Bonn-Bad Godesberg, Germany. http://dr-norman-ali-khalaf-books.webs.com/ Khalaf-von Jaffa, Norman Ali (July 2005). The Jaffa Amphipod (Ampelisca jaffaensis Bellan-Santini & Kaim-Malka, 1977) from Jaffa, Palestine. Gazelle : The Palestinian Biological Bulletin (ISSN 0178-6288). Number 43, Twenty Third Year, July 2005, pp. 1-5. Sharjah, United Arab Emirates. https://archive.li/pRywX & https://de.groups.yahoo.com/neo/groups/Quastenflosser/conversations/topics/3 Khalaf-von Jaffa, Norman Ali (2005). Aquatica Arabica. An Aquatic Scientific Journey in Palestine, Arabia and Europe between 1980 - 2005 / Aquatica Arabica. Eine Aquatische Wissenschaftliche Reise in Palästina, Arabien und Europa zwischen 1980 - 2005. ISBN 300-014835-3. Erste Auflage/First Edition, August 2005: 376 Seiten / Pages. SelfPublisher: Norman Ali Khalaf, Rilchingen-Hanweiler, Bundesrepublik Deutschland & Sharjah, United Arab Emirates. http://dr-norman-ali-khalafbooks.webs.com/aquaticaarabica.htm Khalaf, N.A.B. (2005). The Schooling of Sumatra Barbs (Barbus tetrazona tetrazona) and Minnows (Phoxinus phoxinus). [M.Sc. Dissertation in Ecology, Departments of Zoology and Botany, University of Durham, England. September 1986. pps. 59 + iv]. In: Aquatica Arabica. An Aquatic Scientific Journey in Palestine, Arabia and Europe between 1980 2005. Erste Auflage/First Edition, August 2005. Self-Publisher: Norman Ali Khalaf, Rilchingen-Hanweiler, Bundesrepublik Deutschland & Sharjah, United Arab Emirates. pp. 28-93. Khalaf-von Jaffa, Norman Ali (August 2005). The Jaffa Amphipod (Ampelisca jaffaensis Bellan-Santini & Kaim-Malka, 1977) from Jaffa, Palestine. In: Aquatica Arabica. An Aquatic Scientific Journey in Palestine, Arabia and Europe between 1980 - 2005. Erste Auflage/First Edition, August 2005. Self-Publisher: Norman Ali Khalaf, RilchingenHanweiler, Bundesrepublik Deutschland & Sharjah, United Arab Emirates. pp. 231-236. Khalaf-von Jaffa, Norman Ali Bassam (Member of PALESTA) (2005). Palestinian Scientists and Technologists Abroad (PALESTA). Gazelle: The Palestinian Biological Bulletin. Number 47, Twenty-third Year, November 2005, Shawal 1426. pp. 11-12. Sharjah, United Arab Emirates. (In Arabic). Khalaf, Norman Ali (2005, 2006, 2007). Chapter 3: Geography, Flora and Fauna. Pages 32-39. In: Palestine: A Guide. By Mariam Shahin, Photography by George Azar. CoAuthor: Norman Ali Khalaf. Northampton, Massachusetts: Interlink Publishing Group, 2005, 2006, 2007. xi + 471 pages. Appendices to page 500. http://ipsnewsite.mysite4now.com/journals.aspx?id=7323&jid=1&href=fulltext Khalaf-Sakerfalke von Jaffa, Norman Ali Bassam Ali Taher (Gründer) (seit Juni 2007). Yahoo! Deutschland Group: Fauna Palaestina. http://de.groups.yahoo.com/group/Fauna_Palaestina/ Khalaf-Prinz Sakerfalke von Jaffa, Dr. Sc. Norman Ali Bassam Ali Taher (July, September 2007). Felidae Arabica. A Zoological Journey in Palestine, Arabia and Europe between 1980-2007 / Felidae Arabica. Eine Zoologische Reise in Palästina, Arabien und Europa zwischen 1980-2007. ISBN 978-3-00-019568-6. Erste Auflage (First Edition), Juli Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

(July) 2007, 300 pp. Self-Publisher: Dr. Norman Ali Khalaf, Rilchingen-Hanweiler, Deutschland & Sharjah, United Arab Emirates. (in Arabic, German and English). Doctoral Dissertation, Ashwood University, USA. Doctor of Science Degree in Zoology (Summa Cumm Laude) on 26.09.2007. http://dr-norman-ali-khalafbooks.webs.com/felidaearabica.htm & Doctoral Dissertation eBook : https://www.yumpu.com/en/document/view/59397999/doctorate-dissertationfelidae-arabica-by-norman-ali-bassam-khalaf-doctor-of-science-ashwood-universityusa-2007 Khalaf-Sakerfalke von Jaffa, Norman Ali Bassam Ali Taher (Gründer) (seit September 2007). Yahoo! Deutschland Group: Fauna Arabica. http://de.groups.yahoo.com/group/Fauna_Arabica/ Khalaf-Sakerfalke von Jaffa, Norman Ali Bassam Ali Taher (2007). Haywanat Filistin ‫( حيوانات فلسطين‬Fauna of Palestine). Wikipedia, Al-Mawsu'a Al-Hurra (The Free Encyclopedia). Gazelle: The Palestinian Biological Bulletin. Number 69, Twenty-fifth Year, September 2007 CE, Sha’ban 1428 AH. pp. 1-4. (in Arabic). http://ar.wikipedia.org/wiki/%D8%AD%D9%8A%D9%88%D8%A7%D9%86%D8%A7 %D8%AA_%D9%81%D9%84%D8%B3%D8%B7%D9%8A%D9%86 Khalaf-Sakerfalke von Jaffa, Dr. Sc. Norman Ali Bassam Ali Taher (2009). Flora and Fauna in Palestine. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 91, July 2009, Rajab 1430 AH. pp. 1-31. Sharjah, United Arab Emirates. http://flora-fauna-palestine.webs.com/ Khalaf-von Jaffa, Dr. Norman Ali Bassam (2009). Fauna Palaestina – Part One. A Zoological Journey in Palestine, Arabia and Europe between 1983 – 2006 / Fauna Palaestina – Teil Eins. Eine Zoologische Reise in Palästina, Arabien und Europa zwischen 1983 – 2006. ISBN 978-9948-03-865-8. Erste Auflage/First Edition, September 2009: 412 Seiten/Pages. Self-Publisher: Dr. Norman Ali Bassam Khalaf-von Jaffa, Sharjah, United Arab Emirates & Rilchingen-Hanweiler, Bundesrepublik Deutschland. http://dr-norman-ali-khalaf-books.webs.com/faunapalaestinapart1.htm Dr. Sc. Norman Ali Bassam Ali Taher Khalaf-Sakerfalke von Jaffa, Zoologist, Ecologist and Geologist : The Scientific References (1980-2009). http://dr-norman-ali-khalafreferences.webs.com/ Khalaf-von Jaffa, Dr. Sc. Norman Ali Bassam Ali Taher (2010). Fauna Emiratus - Part One. Zoological Studies in the United Arab Emirates between 2004 - 2009. /Fauna Emiratus – Teil Eins. Zoologische Studien in die Vereinigten Arabischen Emirate zwischen 2004 - 2009. ISBN 978-9948-15-462-4. Erste Auflage/First Edition, November 2010: 350 Seiten / Pages. Self-Publisher: Dr. Norman Ali Bassam Khalaf-von Jaffa, Dubai and Sharjah, United Arab Emirates & Rilchingen-Hanweiler, Bundesrepublik Deutschland. http://dr-norman-ali-khalaf-books.webs.com/faunaemiratuspart1.htm Khalaf-von Jaffa, Dr. Norman Ali Bassam (2012). Fauna Palaestina – Part Two. Zoological Studies in Palestine between 1983 – 2009 / Fauna Palaestina - Teil Zwei. Zoologische Studien in Palästina zwischen 1983 – 2009. ISBN 978-9948-16-667-2. 1. Auflage / First Edition: July 2012, Shaaban 1433 H. 208 Seiten / Pages (Arabic Part Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

120 Pages and the English Part 88 Pages). Publisher: Dar Al Jundi Publishing House, Jerusalem, Palestine. http://dr-norman-ali-khalafbooks.webs.com/faunapalaestinapart2.htm Khalaf-von Jaffa, Dr. Norman Ali Bassam (2013). Fauna Palaestina – Part Three. Zoological Studies in Palestine between 2005 – 2012/ Fauna Palaestina – Teil Drei. Zoologische Studien in Palästina zwischen 2005 – 2012. ISBN 978-9950-383-35-7. ErsteAuflage / First Edition : July 2013, Shaaban 1434 H. 364 pages (English Part 350 Pages and the Arabic Part 14 Pages). Publisher: Dar Al Jundi Publishing House, Jerusalem, State of Palestine. http://dr-norman-ali-khalafbooks.webs.com/faunapalaestinapart3.htm Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher (2013). Garra rufa wadiqana Khalaf, 2013: A New Freshwater Doctor Fish Subspecies from Wadi Qana Nature Reserve, Salfit Governorate, State of Palestine. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 103, July 2013, Ramadan 1434 AH. pp. 125. Dubai and Sharjah, United Arab Emirates. http://palestinefishes.webs.com/palestine-doctor-fish Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher (2013). † Macropomoides palaestina Khalaf, 2013: A New Coelacanth Fish Fossil Species from the Anthracothere Hill in Al-Naqab, Palestine. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 107, November 2013, Muharram 1435 AH. pp. 30-38. Dubai and Sharjah, United Arab Emirates. http://quastenflosser.webs.com/macropomoidespalaestina.htm Khalaf-von Jaffa, Prof. Dr. Norman Ali Bassam (2014). Fauna Palaestina – Part Four. Zoological Studies in Palestine between 1983 – 2014 / Fauna Palaestina – Teil Vier. Zoologische Studien in Palästina zwischen 1983 – 2014. ISBN 978-9950-383-77-7. Erste Auflage / First Edition : July 2014, Ramadan 1435 H. 456 Pages (English Part 378 Pages and the Arabic Part 78 Pages). Publisher: Dar Al Jundi Publishing House, Al-Quds (Jerusalem), State of Palestine. http://fauna-palaestina-part1.webs.com/faunapalaestina4.htm Khalaf-von Jaffa, Prof. Dr. Norman Ali Bassam (2014). † Macropomoides palaestina Khalaf, 2013: A New Coelacanth Fish Fossil Species from the Anthracothere Hill in Al-Naqab, Palestine. In: Fauna Palaestina – Part Four. Zoological Studies in Palestine between 1983 – 2014 / Fauna Palaestina – Teil Vier. Zoologische Studien in Palästina zwischen 1983 – 2014. ISBN 978-9950-383-77-7. Erste Auflage / First Edition : July 2014, Ramadan 1435 H. pp. 126 - 138. Publisher: Dar Al Jundi Publishing House, Al-Quds (Jerusalem), State of Palestine. Khalaf-Sakerfalke von Jaffa, Prof. Dr. Norman Ali Bassam Ali Taher (2015). Plants and Animals unique to Palestine. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 125, May 2015. pp. 1-18. Dubai and Sharjah, United Arab Emirates. http://flora-fauna-palestine-2.webs.com/ Khalaf-von Jaffa, Prof. Dr. Norman Ali Bassam (2015). Fauna Palaestina – Part Five. Zoological Studies in Palestine between 1983 – 2016 / Fauna Palaestina – Teil Fünf. Zoologische Studien in Palästina zwischen 1983 – 2016. ISBN 978-9950-383-92-0. Erste Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

Auflage / First Edition : July 2015, Ramadan 1436 H. 448 pp. (English Part 304 Pages and the Arabic Part 144 Pages). Publisher: Dar Al Jundi Publishing House, Al-Quds (Jerusalem), State of Palestine. http://fauna-palaestina-books.webs.com/ Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher (2016). Haywanat Falastin (Fauna of Palestine) ‫ حيوانات فلسطين‬. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 144, December 2016, pp. 1-18. Dubai and Sharjah, United Arab Emirates (In Arabic). http://animals-of-palestine-2.webs.com/fauna-ofpalestine-arabic Khalaf, Norman Ali (29.03.2017). Nudibranch Dermatobranchus semistriatus. Facebook. https://www.facebook.com/media/set/?set=a.10155064934059831&type=1&l=0c20d27 dc7 Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (May 2017). Diaphorodoris olakhalafi Khalaf, 2017 : A New Dorid Nudibranch Sea Slug Species from the Sea of Khorfakkan, Gulf of Oman, Arab Sea, Indian Ocean. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 149, May 2017, pp. 31-47. Dubai and Sharjah, United Arab Emirates. http://marine-life-uae.webs.com/diaphorodoris-olakhalafi & https://issuu.com/dr-normanalibassamkhalaf/docs/nudibranch_ola_khalaf Khalaf-von Jaffa, Prof. Dr. Norman Ali Bassam (May 2017). Taxon Profile: Species Khorfakkan White Dorid Nudibranch Diaphorodoris olakhalafi Khalaf, 2017. BioLib.cz. Biological Library Classification. http://www.biolib.cz/en/taxon/id1222805/ Khalaf-von Jaffa, Prof. Dr. Norman Ali Bassam (May 2017). Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017). EOL: Encyclopedia of Life. http://eol.org/collections/131000 Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (2017). Presence of the Yellowish-Orange Spotted Chromodorid Nudibranch (Risbecia pulchella [Hypselodoris pulchella] Rüppell & Leuckart, 1830) in the Sea of Fujairah, Gulf of Oman, Arab Sea, Indian Ocean. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 154, October 2017, pp. 1-19. Dubai and Sharjah, United Arab Emirates. http://marinelife-uae.webs.com/ Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (2017).The Semi-Striated Arminid Nudibranch (Dermatobranchus semistriatus Baba, 1949) : First Record from the Sea of Fujairah, Gulf of Oman. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 155, November 2017, pp. 1-15. Dubai and Sharjah, United Arab Emirates.http://marine-life-uae.webs.com/dermatobranchus-semistriatus Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (2017). Presence of the Sexy Anemone Shrimp (Thor amboinensis de Man, 1888) in the Sea of Kalba, Gulf of Oman, Arab Sea, Indian Ocean. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 156, December 2017, pp. 1-17. Dubai and Sharjah, United Arab Emirates. http://marine-life-uae.webs.com/sexy-shrimp Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (2018). Presence of the Banded Coral Shrimp (Stenopus hispidus Olivier, 1811) around the Snoopy Island, Emirate of Fujairah, United Arab Emirates, Gulf of Oman, Arab Sea. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 157, January 2018, pp. 1-13. Dubai and Sharjah, United Arab Emirates. http://marine-life-uae-2.webs.com/ Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (2018). Presence of the White Dilapidated Dorid Nudibranch (Goniobranchus obsoletus Rüppell & Leuckart, 1831) in Fujairah Sea, Gulf of Oman, Arab Sea, Indian Ocean. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 158, February 2018, pp. 1-13. Dubai and Sharjah, United Arab Emirates.http://nudibranch.webs.com/ Khalaf-Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (Photography) (March 2018). Ola Khalaf’s Nudibranch Sea Slug (Diaphorodoris olakhalafi Khalaf, 2017). ‫بُزاق بحر عُال خلف عاري‬ )2017 ، ‫الخياشيم ( ديافورودوريس عُال خلفي خلف‬. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Number 159, March 2018, pp. 1-22. Dubai and Sharjah, United Arab Emirates. (In Arabic & English). http://nudibranch.webs.com/diaphorodorisolakhalafi

Khalaf-Prinz Sakerfalke von Jaffa, Prof. Dr. Sc. Norman Ali Bassam Ali Taher Mohammad Ahmad Mostafa & Ola Mostafa Esmail Mostafa Khalaf (Photography) (February 2019). Ola Khalaf’s Nudibranch Sea Slug (Diaphorodoris olakhalafi Khalaf, 2017) from Dibba Sea, East Coast of the United Arab Emirates, Gulf of Oman. ‫بُزاق بحر عُال خلف‬ ، ‫ الساحل الشرقي لدولة اإلمارات العربية ال ُمتحدة‬، ‫) من بحر دبا‬2017 ، ‫عاري الخياشيم ( ديافورودوريس عُال خلفي خلف‬ . ‫خليج عُمان‬. Gazelle: The Palestinian Biological Bulletin. ISSN 0178 – 6288. Volume 37, Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

Number 170, February 2019, pp. 1-19. Published by Prof. Dr. Norman Ali Khalaf Department for Environmental Research and Media, National Research Center, University of Palestine, Gaza, State of Palestine. (In Arabic & English). http://nudibranch-uae.webs.com/diaphorodoris-olakhalafi Khalaf, Ola (31.12.2016). Nudibranch Risbecia pulchella Photo. Facebook. https://www.facebook.com/photo.php?fbid=1834215446831832&set=pb.100007301827 082.-2207520000.1488819431.&type=3&theater Khalaf, Ola (28.03.2017). Nudibranch Dermatobranchus semistriatus. Facebook. https://www.facebook.com/photo.php?fbid=1878358892417487&set=a.13787642290436 25.1073741825.100007301827082&type=3&theater Lavi, Yoav (05.10.2009). Chromodoris annulata from Mediterranean coast of Israel. Sea Slug Forum. http://www.seaslugforum.net/message/22678 Martynov A., Korshunova T., Sanamyan N. & Sanamyan K. (16 July 2009). Description of the first cryptobranch onchidoridid Onchimiracavifera gen. et sp. nov., and of three new species of the genera Adalaria Bergh, 1879 and Onchidoris Blainville, 1816 (Nudibranchia: Onchidorididae) from Kamchatka waters. Zootaxa 2159: 1-43. Medslugs. Dermatobranchus semistriatus Baba, 1949. Location: Eilat. Country: Israel. http://www.medslugs.de/E/IndNW/Dermatobranchus_semistriatus/Dermatobranchus_semistriatus_01.htm Medslugs. Dermatobranchus semistriatus Baba, 1949. Location: Eilat. Country: Israel. http://www.medslugs.de/E/IndNW/Dermatobranchus_semistriatus/Dermatobranchus_semistriatus_02.htm Medslugs. Hypselodoris pulchella (Rüppell & Leuckart,1830) [Doris]. http://www.medslugs.de Meredith, Brian (25.01.2014 + 02.03.2014). Facebook. https://www.facebook.com/photo.php?fbid=10152224265669085&set=pb.596509084.2207520000.1493270116.&type=3&theater & https://www.facebook.com/photo.php?fbid=10152299317734085&set=pb.596509084.2207520000.1493269902.&type=3&theater Messruther, William (22.09.2008). Re: Chromodoris annulata from Gulf of Oman. Sea Slug Forum. http://www.seaslugforum.net/message/21896 Millen S.V. & Martynov A. (2005) Redescriptions of the nudibranch genera Akiodoris Bergh, 1879 and Armodoris Minichev, 1972 (suborder Doridacea) with a new species of Akiodoris and a new family Akiodorididae. Proceedings of the California Academy of Sciences, (4) 56(1-17): 1-22., available online at http://researcharchive.calacademy.org/research/scipubs/pdfs/v56/proccas_v56_n01. pdf Molluscabase. Diaphorodoris olakhalafi Khalaf, 2017. http://www.molluscabase.org/aphia.php?p=taxdetails&id=1023241 Neal, Lawrence (04.05.2010). Re: Chromodoris annulata colour from the Persian Gulf. Sea Slug Forum. http://www.seaslugforum.net/find/23605 Nudi Pixel. Dermatobranchus semistriatus Baba, 1949. http://www.nudipixel.net/species/dermatobranchus_semistriatus/ Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

Nudi Pixel. Genus: Diaphorodoris. http://www.nudipixel.net/genus/diaphorodoris/ Ogden, Colin (05.07.2007). Dermatobranchus feeding on soft coral. http://www.seaslugforum.net/find/19594 OPK - Opistobranquis . Diaphorodoris luteocincta M. Sars, 1870. http://opistobranquis.info/en/guia/nudibranchia/euctenidiacea/doridacea/diaphoro doris-luteocincta/#gsc.tab=0 OPK - Opistobranquis. Goniobranchus obsoletus Rüppell & Leuckart, 1831 . http://opistobranquis.info/en/guia/nudibranchia/euctenidiacea/doridacea/goniobra nchus-obsoletus/#gsc.tab=0 Pinterest. Nudibranch Chromodorid. https://www.pinterest.com/pin/50665564529434654/ Pinterest. Diaphorodoris olakhalafi. https://www.pinterest.co.uk/pin/355432595583256239/ Quitzau, Harro (May 1, 2003). Chromodoris hintuanensis ?from Thailand. Sea Slug Forum. http://www.seaslugforum.net/find/9692Reef Resident. Nudibranch. http://www.reefresident.com/nudibranchs.html Rudman, W.B. (1973). Chromodorid opisthobranch Mollusca from the Indo-West Pacific. Zoological Journal of the Linnean Society, 52(3): 175-199. Rudman, W.B. (1984). The Chromodorididae (Opisthobranchia: Mollusca) of the IndoWest Pacific: a review of the genera. Zoological Journal of the Linnean Society, 81: 115273. Rudman, W.B., (2001, July 5). Diaphorodoris mitsuii (Baba, 1938). [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/diapmits Rudman, W.B. & Darvell, B.W. (1990). Opisthobranchmolluscs of Hong Kong. Part 1. Goniodorididae, Onchidorididae, Triophidae, Gymnodorididae, Chromodorididae, (Nudibranchia). Asian Marine Biology, 7: 31-79. Rüppell E. & Leuckart F.S. (1828-1830). Mollusca [in] Atlas zu der Reise im nördlichen Afrika von Eduard Rüppell. 1. Abth. Zoologie. 5. Neue wirbellose Thiere des Rothen Meers. Frankfurt, H.L. Brönner pp. 1-22, pl. 1-12 [1828], pp. 23-47 [probably 1830], page(s): 32, plate IX, Figure 5. http://www.biodiversitylibrary.org/item/114235#page/349/mode/1up. Rüppell, Wilhelm Peter Eduard Simon, & F. S. Leuckart (1831). [for 1828]. Mollusca. In: Atlas zu der Reise im nördlichen Afrika von Eduard Rüppell Erste Abtheilung Zoologie Neue wirbellose Thiere des Rothen Meers, pp. 15-47, pls. 1-12. [Nudibranchia pp. 15-18, 27-37, pls. 4-5, 8-11]. Rüppell, E. & Leuckart, F.S. (1831) Neue wirbellose Thiere des Rothen Meeres. Atlas zu der Reise im nördlichen Afrika von Eduard Rüppell. Brunner, Frankfurt am Main. 2350, pls 7-12 pages. Sea Slug Forum. Diaphorodoris mitsuii (Baba, 1938). http://www.seaslugforum.net/find/diapmits Smith, Gordon T. (Searcaigh) (03.02.2012). Nudibranch from UAE. Moderator: Dave Behrens. http://www.uwphotographyguide.com/forums/viewtopic.php?f=18&t=963 Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019

Sterrer, W. (1986). Marine Fauna and Flora of Bermuda: A Systemic Guide to the Identification of Marine Organisms. USA: John Wiley & Sons Inc. The Free Dictionary. Gonio-. http://medical-dictionary.thefreedictionary.com/gonioThompson, T. E., & Brown, G.H. (1984). Biology of opisthobranch Molluscs. Vol. 2. Ray Society; London. 1-229, p.49. Tripadvisor. Photo: “Ola Khalaf’s Nudibranch (Diaphorodoris olakhalafi Khalaf, 2017) from the east coast UAE.” https://www.tripadvisor.com/LocationPhotoDirectLinkg311321-d634727-i265435829-Sandy_Beach_Hotel_ResortFujairah_Emirate_of_Fujairah.html Vine, P. (1986). Red Sea Invertebrates. Immel Publishing, London. 224 pp. Wiki2. Wikipedia Republished. Nudibranchia. Diaphorodoris olakhalafi fotografiada en golfode Omán, Emiratos Árabes Unidos. https://wiki2.org/es/Nudibranchia Wikidata. Diaphorodoris olakhalafi. https://www.wikidata.org/wiki/Q30107874 Wikipedia. Diaphorodoris. https://en.wikipedia.org/wiki/Diaphorodoris Wikipedia. Diaphorodoris. https://fr.wikipedia.org/wiki/Diaphorodoris Wikipedia. Diaphorodoris. https://it.wikipedia.org/wiki/Diaphorodoris Wikipedia.Diaphorodoris. https://nl.wikipedia.org/wiki/Diaphorodoris Wikipedia.Diaphorodoris alba. https://en.wikipedia.org/wiki/Diaphorodoris_alba Wikipedia. Diaphorodoris lirulatocauda. https://en.wikipedia.org/wiki/Diaphorodoris_lirulatocauda Wikipedia. Diaphorodoris mitsuii. https://en.wikipedia.org/wiki/Diaphorodoris_mitsuii Wikipedia. Diaphorodoris olakhalafi. https://de.wikipedia.org/wiki/Diaphorodoris_olakhalafi Wikipidia. Diaphorodoris olakhalafi. https://en.wikipedia.org/wiki/Diaphorodoris_olakhalafi Wikipedia. Diaphorodoris olakhalafi. https://fr.wikipedia.org/wiki/Diaphorodoris_olakhalafi Wikipedia. Ola Khalaf’s Nudibranch.‫ بزاق بحر عال خلف عاري الخياشيم‬. (In Arabic). https://ar.wikipedia.org/wiki/%D8%A8%D8%B2%D8%A7%D9%82_%D8%A8%D8% AD%D8%B1_%D8%B9%D9%84%D8%A7_%D8%AE%D9%84%D9%81_%D8%B9%D8% A7%D8%B1%D9%8A_%D8%A7%D9%84%D8%AE%D9%8A%D8%A7%D8%B4%D9%8 A%D9%85 Wikipedia. Onchidorididae. https://en.wikipedia.org/wiki/Onchidorididae Wikiwand. Nacktkiemer. http://www.wikiwand.com/de/Nacktkiemer World Register of Marine Species (WoRMS). WoRMS name details. Diaphorodoris olakhalafi Khalaf, 2017. http://www.marinespecies.org/aphia.php?p=taxdetails&id=1023241 World Wide Mullusc Species Data Base (WMSDB). Diaphorodoris olakhalafi Khalaf, 2017. http://www.bagniliggia.it/WMSD/HtmSpecies/5714000005.htm Yourshot. National Geographic. Diaphorodoris olakhalafi Khalaf, 2017. http://yourshot.nationalgeographic.com/photos/10748276/?ys_referrer=https%3A%2 F%2Fwww.google.ae%2F Gazelle : The Palestinian Biological Bulletin – Number 170 – February 2019