204 Transactions.—Zoology. 
Var. a.—antrropa, Hombron and Jacquinot (1854). Pale horny 
banded on both surfaces with brownish chestnut. 
South Island.—Greymouth (Helms). 
Auckland Islands (H. and J., H. Krone). 
Var. 3.—avoxtanpica, Guillon (1842). Yellowish brown with red 
spots on the upper surface only. 
Auckland Islands. 
Allied to H. excavata, H. and J., from Tahiti. The Chatham Island 
specimens are too much rubbed to say to which variety they belong. 
Sub-sec. OXYGNATHA. 
Marginal teeth aculeate, the base longer than broad with a single long 
curved point. 
Fam. Vitrinida. 
Animal heliciform ; the mantle more or less reflected over the shell; no 
caudal mucous gland. 
Genus Trochomorpha, Albers. 
Shell umbilicated or imperforate, conical; the apex obtuse; whorls 5-8, 
the last carinated. 
T. Hermia, Hutton (1888). 
Imperforate ; closely plicated above, polished below. Horny brown, 
paler above than below; columella callous, white. Diameter *7 inch. 
North Island.—Manawatu. 
The animal and dentition are unknown, and the generic position is 
doubtful. 
Genus Vitrina, Draparnaud. 
Shell imperforate, thin, pellucid, shining, depressed ; whorls 2-3, rapidly 
end Jaw smooth with a median projection. 
V. KERMADECENSIS, Pfeiffer. 
Shell polished, slightly undulated with growth-lines; spire flat; whorls 
8. Pale yellow olive. Diameter +84 inch. 
North Island.—Hobson's Glen, Auckland (T. W. Kirk). 
Found also at the Kermadec Islands. 
The animal and dentition are unknown and the generic position is 
doubtful. 
Fam. Limacide. 
Animal elongated; mantle small, shield-like, enclosing the shell. No 
caudal mucous gland. 
Genus Limax, Linné. 
Mantle anterior, the front edge free. Foot with a locomotive disc. 
Sub-genus Milax, Gray. 
Back keeled to the mantle. 
