arckii, from having considered it to be the young of a
new species; it is figured by Martini, 7 t. 84. f. 338, 339, and by Seba,
3 t. 61. f. 5, 6, and is very nearly allied to S. bituberculatus of
Lamarck.

91. Pterocera lambis, Lam. Hist. 7 196.
Strombus lambis, Gmel. Syst. Nat. 3508.
Icon. Lister. Conch. t. 866. f. 21. Martini, Conch. 3 t. 87. f. 858, 859.

This shell is very distinct from Strombus camelus of Chemn. 10 t. 155. f.
1478.

92. Bulla australis, Gray, Ann. of Philosophy, 9 n.s. 408.
Icon. --

This species is very distinct from Bulla striata, Lister. Conch. t. 714.
f. 72. with which it has been generally confounded; it is of larger size
and perfectly smooth.

93. Bulla hyalina (n.s.)

Testa ovata cylindrica imperforata tenuis hyalina albida laevis
concentrice subrugosa; apice incrassato.
Icon. --

The shell ovate, cylindrical, thin; hyaline white, smooth, very slightly
concentrically rugose; the vertex thickened, not perforated; the aperture
rather longer than the shell; the inner lip slightly reflexed; axis
five-twelfths, diameter three-twelfths of an inch.

94. Cryptostoma haliotoideum (n.)
Sigaretus haliotoideus, Lam. Hist. 6 2. 208.
Icon. Martini. Conch. 1 t. 16. f. 151-154.

95. Hipponix listeri (n.)
Icon. Lister. t. 544. f. 29.

This shell is very nearly allied to Pileopis, but the animal is evidently
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.

96. Siphonaria radiata, Var. Gray, Phil. Mag. 1824. 275.
Siphonaria exigua, Sow. Gen.
Patella japonica, Donovan.
Icon. Donovan, Nat. Repos. t. 79.

97. Bulimus kingii, Gray, Ann. Phil., 9 n.s. 414.
Icon.

The shell ovate, white, with numerous dark-brown irregular concentric
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); perforation 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.

98. Cyclostoma australe (n.s.)

Testa orbiculata subtrochiformis profunde umbilicata albida fasciis binis