IT) 5 



ON HELIX (MACULARIA) OGDENI, N.SP., FEOM THE PLIOCENE 

 (EED CRAG) OF EAMSHOLT, SUFFOLK. 



By A, S. Kennakd, F.G.S., and B. B. Woodward, F.L.S. 



Rend 8th May, 1914. 



Shell imperforate, depressed conic, showing traces of oblique lines of 

 growth; whorls 5, convex, regularly increasing ; apex obtuse ; suture 

 linear, moderately impressed ; body-wliorl about half the size of the 

 shell, scarcely dilated, convex below, and impressed in the umbilical 

 region, deeply deflexed anteriorly ; aperture broadly lunate, margins 

 distant; outer lip narrowly expanded, having a slight thickening 

 within ; columella margin deflected, with reflected callus concealing 

 the umbilicus. Diam. max. 16-4, min. 14 mm.; altitude 10-8 mm.; 

 mouth 6-7 X 88 mm. 



Formation. — Pliocene (Butleyan Bed Crag). 



Locality. — Baiusholt, Suffolk. 



This unique example was obtained by Mr. W. E. Ogden, of Upper 

 Clapton, fiom a small exposure of lied Crag in a low cliff at Ramsholt, 

 near the Biver Deben, and was kindly sent to us by Mr. A. Bell for 

 determination. It is obviously new to the English Pliocene fauna, 

 and we have failed to identify "it with any Continental species, either 

 recent or fossil. jMr. G. K. Gude informs us that its nearest living 

 ally is Helix {Macularia) ohcrndoerferi, Kobelt. 



The present is the first record of this sub-genus in these Islands, 

 and furnishes additional evidence of the ' Southern' affinities of the 

 English Pliocene non-marine Mollusca. We have great pleasure in 

 associating with this interesting specimen the name of the finder, 

 who has, by his enthusiastic researches in the Pliocene deposits of 

 Suffolk, added greatly to our knowledge of the fauna. 



