49 
Jl'an the next ; aperture oval, entire at the base, not half as 
•°ng as the spire, and without teeth; the peristome inter- 
cepted; outer lip generally thickened aud reflexed. 
The shell of this genus is distinguished from that of Lirn- 
Y Us .bv wanting the oblique fold on the pillar; from Clau- 
‘ Slila > in being regular, and in having the peristome simple and 
tap er *- U Pted » and f rom Pupa in having the spire regularly 
ACUTUS. Turbo Fasciatus. Turt. Lin. Pen. Brit. 
Zo., vol. 4, pi. 82, fig, 119. Stew. Elem., vol. 2, p. 410. 
^lonl. Test. Brit., vol. 2, p. 346. B. A. Flem. Br. An., 
P* 265. Gray’s Turt., p. 184, pi. 6, fig. 17. Abundant in 
l he heat of summer, in some situations near the sea ; and 
remarkably so in the west of the county, in sandy soil. 
' Ids shell is sometimes carried into the sea to a consider- 
able distance. I have taken it from the stomach of a Dab 
( Pleuronectes Limanda) that had swallowed it, in com- 
pany with other small shells, for the sake of the Hermit 
“Tab that occupied it. I have also found it mixed with. 
jAbellsand from the Isle of Sark. 
' OBSCURUS. Helix O. Mont. Test. Brit., vol. 2, p. 391. 
' lent. Br. An., p.265. Gray’s Turt., p. 183, pi. 6, fig. 63. 
Aot common. 
r ZUA. 
'GENERIC CHARACTER: The shell ovate, subcylindri- 
Ca l, somewhat blunt, with a smooth polished periostraca; 
^‘outh ovate, thickened and united all round ; peristome 
* Ipolhless ; axis imperforated. 
■ LlJBRICA. Helix L. Turt. Lin. Mont. Test. Brit., 
r ,°‘ • 2. p. 390. Bulimus L. Flem. Brit. An., p.265. Z. L. 
ra y’s Turt., p. 188, pi. 6, fig. 65. Common. 
PUPA. 
'^ERIC CHARACTER: The shell cylindrical, abruptly 
°“tuse; whorls close pressed, gradually enlarging ; mouth 
^emi-oval, mostly toothed inwardly ; peristome reflexed, 
‘ interrupted behind. 
...■ BILIC ATA. Turbo Muscorum. Turt. Lin. Mont. 
0 est - Brit., vol. 2, p. 335. Flem. Brit. An., p. 268. P. U. 
ra J’s Turt. p. 194, pi. 7, fig. 78. Common. 
fjL M 
obtuse, the whorls close pressed, gradually en- 
to ’ nlont h contracted, more or less angular, generally 
inwardly, and thickened by an exterior rib; peris- 
of s * m pi e - This genus has been separated from that 
Jr u P a , because the animal has only the upper pair of 
a cles, which bear the eyes, developed. 
H 
VERTIGO. 
RIC CHARACTER: The 
shell subey lindrical. 
