124 The Shell-Collector’s Handbook. 
BULIMUS ACUTUS, MULLER. 
SHELL conical, turretted, irregularly striate, yellowish- 
white with streaks of pale brown, and sometimes a reddish- 
brown or blackish band below the periphery ; whorls eight 
to nine, rounded; spire tapering, blunt; suture rather 
deep; aperture oval; outer lip thin, reflected ; umbilicus 
narrow, rather shallow. Length 15; diam. 53 mill.; ap. 
5 mill. long., 3 wide. Animal light yellowish-grey. 
Habitat.—Downs and dunes on the south and west 
coasts. 
v. elongata (Cr. and Jan.): Shell more slender. (= Buli- 
mus elongatus, Crist. and Jan., Cat. x., No. 1772.) 
v. inflata (Mogq.): Shell a little ventricose. 
v. bizona (Mog.): Shell with the striz obliterated, 
greyish or whitish, with two dark bands on the body- 
whorl. 
v. strigata (Menke): Shell with broad whitish, or 
white, ribs alternating with transverse semi-translucent 
brownish-grey streaks. 
v. articulata (Zam.): Shell with transverse white 
ribs, alternating with broad stripes of violet brown. 
v. nigrescens ( Taylor): Shell violet-brown, with a few 
fine, whitish, transverse striz, and a pale area around the 
umbilicus, 
v. alba (Requien): Shell entirely white. 
BULIMUS MONTANUS, DRAPARNAUD. 
SHELL oblong, conical, semi-transparent, glossy, with 
spiral, fine, close-set strize, pale brownish horn-colour or a 
deeper brown; whorls six and a half to seven and a half, 
compressed, the body-whorl comprising slightly less than 
half the shell; spire tapering, apex blunt ; suture oblique, 
shallow; aperture oval, pinkish or brownish internally ; 
peristome thick, reflected over the umbilicus; umbilicus 
