: Hurron.—On New Zealand Land Mollusca. 199 
A. curon, Gray (1849). 
Umbilicus moderate; spire convex, with distant membranous plaits. 
Horny without markings. Diameter +24 inch. Dentition, 21-1-21. 
North Island.—Auckland (Greenwood, Cheeseman) ; Wellington (T. W. 
Kirk). 
A. rapipa, Pfeiffer (1853). 
Umbilicus moderate ; spire flat, sub-immersed ; whorls spirally striatu- 
lated. Chestnut with luteous streaks and dots. Diameter ‘8 inch. 
New Zealand.—Locality doubtful. I have not seen this species ; it is 
found in N. Australia, and a variety at the Solomon Islands. 
A. creBRIFLAMMIS, Pfeiffer (1851). 
Umbilicus broad; spire convex, finely striated. Pale horny, with red- 
dish undulating bands. Diameter :28 inch. Dentition, 18-1-18. 
South Island.—Greymouth (Helms). 
B. Whorls ribbed. 
Sub-genus Calymna, Hutton. 
A. costuLaTA, Hutton (1882). 
Umbilicus moderate ; spire convex, closely ribbed; ribs about 45 in the 
tenth of an inch. Horny banded with reddish. Diameter +14 inch. Den- 
tition, 14-1-14. 
North Island.—Auckland (Cheeseman). 
A. LavinIa, Hutton (1888). 
Umbilicus broad; spire flat, closely ribbed, ribs about 18 in the tenth of 
an inch; lower surface smooth. Yellow horny, mottled with rufous on the 
upper side. Diameter ‘5 inch. 
North Island.—Palmerston North (T. W. Kirk). 
Genus Otoconcha, Hutton. 
Shell external, of very few rapidly increasing whorls, all of which are 
open underneath. Animal limaciform, much too large to withdraw into the 
shell; mantle rather anterior, covering the shell; no locomotive disc, nor 
mucous caudal gland. Jaw with distant ribs. 
This genus appears to be allied to Peltella from Brazil and the West 
Indies. 
O. pimmiara, Pfeiffer (1851) Vitrina, 
Shell pale horny, translucent, of two and a half whorls; striated. 
Diameter :2 inch. Animal entirely black, or pale coloured on the foot. 
Dentition, 26-1-26. E 
North Island.—Auckland (Cheeseman); Thames (Adams); Hawke's Bay 
(Colenso) ; Wellington (T. W. Kirk). E 
Fam. Charopida. 
Animal heliciform, with an external shell ; tail with a mucous gland. 
