106 PUPIDE. 
of trees, under logs and stones, among moss and some- 
times on sandhills. It is very variable in size, texture and 
intensity of striation. I have found it in Ireland on the 
banks of the Bann under stones which are completely 
covered by high tides. I possess a sub-scalariform speci- 
men which I took in Derbyshire.* 
Var. I. cravénensts (Taylor). | = dubia, Jeffr. non Drap.] 
larger, more ventricose. A. 17mm. B. 34mm. Whorls 13. 
Var. Il. evérettt (Miller). Smaller, fewer whorls than type. 
Var. III. gracilior (Jeff. ). Longer, more slender. A. 
14 mm. B. 24 mm. 
Var. IV. tumidula (Jeff.). Shorter, more ventricose. 
Var. V. séttont ( West.). [=schléchtit, Jeff.| “ Gener- 
ally larger, more elongated, smoother and more trans- 
parent than V’. dubia; pale brown, frequently resembling 
CV. aminata in smoothness and transparency.” Whorls rT. 
Var. VI. pérvula ( Turton). Smaller, more slender. 
Var. VII. albina (Afog.). White. 
M. dextrorsum (Jeff.). Dextral, resembling a Pufa in 
shape. 
2. C.ROLPHU (after Rolph ), Gray. Pl. V.; £. 2. 
Fusiform, thinner than the last species; reddish or yellowish brown, 
occasionally streaked with white; strongly striated; whorls g—103 
the first two or three upper whorls are nearly of the same breadth 
forming a short cylinder; afex blunt; sowth quadrangular ; plications 
as in last species, but there are often two or three small teeth between 
*See OC. Vole Vili pido. 
