166 
axis with a rather narrow deep umbilicus; mouth rather wide, peri- 
stome thin, slightly reflexed near the axis, and rather smuous near 
the suture of the spire. Diam. 4rd of an inch. 
Hab. Auckland ; Major Greenwood and Dr. Sinclair. 
5. Hewix Ive. 
Shell depressed, pellucid, whitish, brown rayed ; spire flat or rather 
sunk in the middle whorl, close-pressed, convex, with rather distant 
very slight spiral membranaceous ridges, and larger and more distinct 
membranaceous cross-ridges, fringed on the edge with hair-like elonga- 
tions; last whorl rounded externally in front, slightly flattened near 
the axis ; axis large, umbilicated, showing the volutions. Diam. } of 
an inch. 
Hab. Auckland. 
6. Heurx (Zonites) coma, Gray, Fauna N. Z. 263. n. 224. 
Hab. Auckland (abundant); Major Greenwood. 
7. Hexix Ecesta. 
Shell depressed, dark brown ; spire scarcely raised, at length irre- 
gular and rather distorted ; whorls subcylindrical, regularly and closely 
spirally grooved, with rather distant, thick, broad, membranous cross- 
ridges ; last whorl subcylindrical, often twisted rather in front of the 
regular course, rounded externally and in front, and closely spirally 
grooved in front; axis widely umbilicated, showing all the whorls. 
Diam. th of an inch. 
Hab. Auckland; Dr. Sinclair and Major Greenwood. 
8. Zonires CurRon. 
Shell depressed, dark olive-green, covered with a thick, polished 
periostraca, and crossed with rather sinuous, concentric, membranous 
ridges ; spire rather convex, rounded; whorls rather convex, last 
spread out, rounded on the edge and convex in front ; axis widely 
umbilicated, showing the lower whorls ; mouth roundish, sublunate ; 
peristome thin, outer lip rather expanded behind, and separated 
from the penultimate whorl by a slight notch. Diam. 1 of an inch. 
Hab. Auckland ; Major Greenwood. 
The upper surface resembles a miniature Helix Busbyi, but the 
under surface is very different. 
9. ZoniTEs? CoreEsiA. 
Shell depressed, dark olive-green, with brown cross-bands covered 
with a thick, smooth, polished periostraca; spire scarcely raised, 
rather convex ; whorls convex, last expanded, rounded on the edge 
and in front ; axis broadly umbilicated, showing all the whorls ; mouth 
roundish, sublunate; peristome thin, with the periostraca inflexed 
when dry. Diam. 4th of an inch. 
Hab. Auckland, New Zealand. 
This shell is exactly like a very minute specimen of Helix Busbyi. 
It differs from the former, Z. Chiron, in being smaller, more depressed, 
and in the umbilicus being much wider, showing the front side of the 
upper whorls, which appear rather transverse. 
