144 
HELICIDJS. 
Trans, xiil. 843.; Forbes and Hanley,, B. Moll, iv. 81. t. 121. 
f. 7, 8. — Helix rupestris. Drop, Moll, Franc, p. 82. t. 7. 
f . 7 — 9.; Turton,, Man, ed. 1. 60. f. 45.; Rossm, Icon, \m, 
f. 534. — Zonites rupestris. Leach^ Moll, Syn. 74. — Turb» 
myrmecidis. Scacchi,, Oss, Zool, i. 11. — Zonites umbilica- 
tus. Gray, Man, 166. f. 5. t. 45. — Pyramidula rupestris. 
Fitz, Syst, 95. — -Patula rupestris. Held, Isis,, 1837, 916. — 
Euryomphala rupestris, and E. umbilicata. Beck,, Ind, 9. — 
Delomphalus rupestris, and D. saxatilis. Hartm, i. 120. 
t. 37. f. 1 — 6. — Helix spirula. Villa Desp, Syst, 56. — 
Helix aliena. Ziegler,, in Pfeif. Symb. i. 39. 
On elevated rocks^ and under the top stones of 
walls and lofty buildings, always in dry places, on 
calcareous soils. 
Animal black-grey, polished ; upper tentacles 
cylindrical; jaw narrow, regularly striated in front, 
and minutely crenulated on the edge. {Moq. Tand. 
t. 15. f. 10.) 
Shell the tenth of an inch in diameter, elevated 
on the upper side, with five rounded and deeply 
divided volutions, slightly striate, of an uniform deep 
opaque chocolate-brown ; aperture nearly circular, 
being very little interrupted by the penultimate 
volution, the margin thin and not reflected ; umbilicus 
funnel-shaped. 
This shell varies in the elevation and depression 
of the spire. 
Montagu observes it is remarkable that this 
shell always affects such lofty places as the tops of 
houses, without one being found near the base ; and 
in that situation its inhabitant braves equally the 
scorching beams of the sun in summer and the frigid 
wind of winter, without attempting to descend.” 
(^Test, Brit, 435.) 
Colonel Montagu’s name should be retained for 
