Hurron.—On New Zealand Land Shells. 181 
Animal. Mantle subcentral; tail truncated, with a mucous gland below 
a papilla ; eye-peduncles thick, approximated at their bases. Anterior por- 
tion of the animal, including the eye-peduncles and tentacles, pale-purplish, 
the peduncles darker ; a narrow white line down the back; foot and the 
rest of the body yellowish white. | 
Jaw rudimentary ; flatly ribbed, the ribs indenting the concave margin. 
Dentition 17-1-17. Laterals 8. 
Central tooth rectangular, the base longer than broad; the reflexed 
portion tricuspid, the middle cusp covering three-fourths of the base. 
Laterals with the reflexed portion larger, reaching the posterior margin of 
the base, the inner side slightly indented, the outer with a well-marked 
cusp; median cusp with a long point. Marginals broader than long with 
four or five points, the inner of which is much longer than the others. 
Hab. Greymouth (R. Helms). 
Cuaropa PLANULATA, n.8. Pl. ix., fig. 7. 
Shell small, depressed, sub-perforated, closely ribbed, rather shining : 
colour horny brown, sometimes clouded with rufous. Spire slightly ele- 
vated, flatly convex ; whorls 43-5, slowly increasing, rounded, ornamented 
with fine, slightly undulating, ribs, about 35 to 40 in the tenth of an inch, 
the interstices finely striated with growth-lines; last whorl rounded at the 
periphery, but slightly flattened below: suture impressed: umbilicus very 
narrow and generally covered over by the reflected columellar lip: aperture 
sub-vertical, transversely rotundly lunar ; peristome thin; the right margin 
descending, then arched ; columellar margin thickened, rapidly ascending 
and slightly reflected; basal margin rather flattened : interior slightly cal- 
lous. Greatest diameter ‘15, least ‘12; height ‘6 inch. 
Jaw apparently absent. 
Dentition, 11-1-11. Laterals 4. One specimen examined had only 
9-1-9 teeth. 
Central tooth small, rectangular, longer than broad, the reflexed portion 
short, tricuspid ; the middle cusp not reaching much more than half the 
length of the base. Laterals with the reflexed portion tricuspid and longer 
- than that of the central tooth, the middle cusps reaching almost to the 
posterior margin of the base; lateral cusps constricted on the outer side. 
Marginals tridentate, the outer ones bidentate. 
Hab. Auckland (T. F. Cheeseman). 
Cuaropa (?) CASSANDRA, N. 8. 
Shell depressed, sub-perforate, closely ribbed: colour pale horny with 
longitudinal angulated bands of chestnut. Spire conoidal, depressed, ob- 
tuse ; whorls 54, gradually increasing, very finely ribbed; ribs about 20 in 
the tenth of an inch; periphery rounded: suture impressed ; umbilicus 
