no JOURNAL OF CONCHOLOGY, VOL. l6, NO. 4, AUGUST, I92O. 



is of a rosy colour, tinged with fawn, the lip is dark in colour and 

 the rib pale, while the aperture is externally margined by a transverse 

 yellowish band, exactly as in the var. olivacea of H. tiemoralis ; 

 var. lilacina Taylor. — ^This pretty form is represented by three 

 specimens, all of which show a tendency to approach the var. olivacea 

 in colouring. They also show the purplish lip which is a characteristic 

 feature of hybrida Poiret. As is usual in this variety the specimens 

 are quite bandless ; var. rufozotiata Ckll. is exemplified by one speci- 

 men in which the bands are of a pale red-brown colour with the 

 formula 10345 ; it also possesses the rose-coloured lip of the var. 

 roseolabiata Taylor ; var. rufolabris Kregl., in which the lip and 

 internal rib are of a rich brown colour, is represented by several 

 specimens : var. fascinta Moq. by eleven diversely banded shells ; 

 var. nioulinsia Moq., formula 10305, a widely distributed variety 

 forming more than half the total number ; the common mut. barnesia 

 Moq., formula 10345, is also represented ; as is also the mut. inoreletia 

 Moq. ( = mut. bellardia l^oc.) formula 11345; the mut. 1(234)5 is 

 rather rare and has not yet been recorded for France ; the var. septe7n- 

 fasciata Picard is represented by a single shell which shows the five 

 normal and two auxiliary bands (formula 1 033445). 



Bouchard-Chantereaux records this species as common but local in 

 the department, and cites twenty-eight varieties (mostly of banding) 

 and a monstrosity. 



Hygromia Striolata (C. Pfr.). — -Locally common, but the speci- 

 mens are chiefly from Polincove, many being very flat above and 

 good examples of the var. depressa Taylor ; some large specimens 

 verging on 15 mm. in diameter are var. //my^r Taylor. Among the 

 smaller shells, the var. riibens Moq. was represented by a richly 

 coloured specimen with a strongly developed apertural rib ; while a 

 few fairly large individuals exemplified the var. albocinda Ckll. As in 

 H. nemoralis and H. hortensis this pale peripheral zone is the last 

 vestige of a former scheme of pigmentation. Bouchard-Chantereaux 

 cites this species as H. rufescens, with four varieties. 



Hygromia hispida (L.). — Widely distributed and very common. 

 The shells collected round Polincove are mainly the flat spired and 

 widely umbilicated form described by Jeffreys as Helix concinna, but 

 which is really the typical H. hispida of Linne. There are no really 

 hispid specimens, and several are quite smooth and polished, the var. 

 depilata Alder ; var. fusca Moq. is also present and recognizable by 

 the clear brown colour ; this form was found at Audruicq and Polin- 

 cove ; its character would be well conveyed by the name depilata- 

 fusca ; the var. albida Jeffr. is represented by a somewhat small, 

 conical and depilate shell from Polincove in which the transverse stride 

 are beautifully close and very finely and distinctly incised ; the atavic 



