Mollusca.1 
NATURAL HISTORY. 
491 
The shell ovate, cylindrical, thin ; hyaline white, smooth, very 
slig’htly concentrically rugose ; the vertex thickened, not perfo- 
rated ; the aperture rather longer than tlie shell ; the inner lip 
slightly reflexed ; axis five-twelfths, diameter three-twelfths of an 
inch. 
94. Cryptostoma haliotoideum, (n.) 
Sigaretus haliotoideus, Lam. Hist. vi. 2. 208. 
Icon. Martini. Conch, i. t. 16. f. 151 — 154. 
95. Hipponix Listeri, (n.) 
Icon. Lister, t. 544. f. 29. 
This shell is very nearly allied to Pileopsis, but the animal is evi- 
dently not brachiopodous. It does not form (or at least not always) 
a shelly support, but corrodes the surface of the shell to which 
it is attached, so as to form a more flat attachment, and to leave 
a lunate convex rib instead of the lunate muscular impression 
which is observed on those specimens or individuals which have a 
shelly base. 
j96. SipHONARiA RADiATA, Vav. Gmy, Phil. Mag, 1824. 275. 
Siphonaria Exigua, Sow. Gen, 
Patella Japonica, Donovan. 
Icon. Donovan, Nat. Repos, t. 79. 
97. Bulimus Kingii, Gray, Ann. Phil., ix. n, s. 414. 
Icon. 
The shell ovate, white, with numerous dark-brown irregular con- 
centric lines, smooth except near the suture where it is slightly 
wrinkled; whorls six, rather convex; aperture ovate, about half 
as long as the shell ; peristome thin (perhaps not formed) ; per- 
foration covered with a white even lip, surrounded by a dark edge ; 
the throat chocolate -brown. 
This shell is abundant on the hills of King George the Third’s 
Sound, in the vicinity of Bald Head. 
