NEW SUFFOLK MAMMALIA
297
below Corton cliff. The former may well be as old as the Continental specimens as they are evidently derived into the Crag from an older deposit and would therefore be several millions of years old. The Corton specimen which has been referred to II. crocuta dates back about half a million years and could have been an ancestor to the Barham specimen which is probably the same species. It is hoped further remains of this rare and interesting animal will be recovered.
THE YELLOW NECKED FIELD AT STOWMARKET by W.
G.
MOUSE
THURLOW
IN an investigation carried out by H. N. Southern (of the Bureau of Animal Population, Oxford), it was found that, in one area where the choice of a river-side habitat occurred, the Yellownecked Mouse (Apodemus flavicollis zvintoni Barrett-Hamilton) was more frequently noted in the neighbourhood of the river, that flavicollis might be a water-side creature ; this, according to Lord Cranbrook, is not the case at Great Glemham. A. flavicollis was first noted at Stowmarket about 60 yards from the River Gipping, and it was decided to carry out an investigation in this locality in an attempt to determine any apparent influence the river might have upon the distribution of the Stowmarket flavicollis.