136 The Shell-Collector’s Handbook. 
Journ. ii., 556; Man. ed. i., 74, f. 58 ; Jeffreys, Linn. Trans. 
Xvi., 352; non Studer.) 
v. albinos (Moq.): Shell whitish. 
m, dextrorsum (Jeff.): Shell resembling a Pupa in 
shape; spire dextral. (B.C. vol. i., p. 279.) 
CLAUSILIA ROLPHII, GRAY. 
SHELL fusiform, glossy, thin, reddish or yellowish-brown, 
closely and strong striated ; whorls nine to ten, ventricose ; 
spire blunt; suture shallow, oblique; aperture rounded, 
pyriform, sinuous on the outer side, with plaits as in C, 
rugosa, but the lower one on the base of the penultimate 
whorl is less prominent and sometimes cruciate ; peristome 
detached, thick, white; umbilicus ill-defined; clausilium 
oblong. Length 13; diam. 3 mill. Ap. nearly 3 mill. long, 
2 wide. Animal dark reddish-brown; mantle yellowish- 
white, spotted with white. 
Habitat—Among dead leaves, under stones, and the 
bark of trees in woods. 
v. pellucida (Taylor): Shell colourless, transparent. 
CLAUSILIA BIPLICATA, MONT. 
Suextt fusiform, slender, diaphanous, yellowish-brown, 
marked with closely-set, strong striz, some of which are 
streaked with white; periphery obtusely angulated; 
whorls twelve to thirteen, compressed; spire tapering, 
blunt; suture oblique, shallow; aperture pyriform, canali- 
culated, with the same plaits as in C. rugosa and C. 
Rolphii, except that the teeth between the folds on the 
base of the penultimate whorls are not represented ; 
peristome white, thick, detached ; basal crest prominent ; 
clausilium oval. Length 16-17; diam.4 mill. Ap. 4 mill. 
