184 
HELICIBiE. 
variety to be characterised by the Internal lamina 
being notched. 
b. Clausium entire at the top ; shell corrugated. (Iphl- 
genia Gray.) 
84. 2. Clausilia hiplicata. Folded Close Shell. — 
Shell ventricose^ opaque grey-brown^ with re- 
gular raised strise; aperture with two plaits, 
the margin detached all round, (t. 5. f. 55.) 
Turbo biplicatus. Mont, p. 361. t. 11. f. 5. — Clausilia ven- 
tricosa. C. Pfeiffer,, D. Moll, i. 63. t. 3. f, 29. ; Drap, 
p. 71. t. 4. f. 14.; Jeffreys,, Linn. Trans, xvi. 354. — Clausilia 
biplicata. Leach,, Moll. ; C. Pfeiffer., L). Moll. i. 63. t. 3. 
f. 27.; Forhes and Hanley,, B. M. iv. 118. t. 129. f. 4. — 
Clausilia Montagui. Gray,, Ann. Phil. 1825,413. — Helix 
perversa, adult. Muller., Verm. ii. 118.(?) — Helix (Cocblo- 
dina) ventricosula. Feruss. Tab. 63. — Clausilia similis. 
Charpent. in Rossm. Icon. i. 77. f. 30., vii. f. 168., xi. f. 705, 
706.; Gray,, Ann. Phil. 1825, 413, — Cochlodina similis. 
Ferussac? — Clausilia plicata. Gdrt. Wett. Conch. 22. — 
C. perversa. C. Pfeiffer,, D. Moll. i. 63. t. 3. f. 29. — Odo- 
stomia biplicata. Flem. E. Ency. vii. 77- — Clausilia vivipara. 
Held. Isis,, 1837, 319. — Clausilia cordata ; C. vulnerata ; 
C. infulmformis ; C. radicans; C. rostrata ; and C. qua- 
drata. Forst, N. Act. Leop. xix. 269 — 275. t. 58. f. 1—6. 
1841. 
In woods and close hedges. 
Animal dark grey. 
Shell nearly three quarters of an inch long, dark 
grey, opaque, regularly striate longitudinally ; spire 
consisting of eleven or twelve rather flat but well- 
defined volutions ; the suture a depressed line ; aper- 
ture oval, a little sinuous at the upper and inner 
angle, with two plaits, one near the top of the pillar 
lip, and the other not quite halfway down, both of 
them approaching each other as they recede inwardly ; 
