TROCHIDA. 91 
oblique transverse striz ; columella flattened ; blackish green, covered 
with a brown epidermis (old worn dead shells are sometimes pink 3) 
inside white, slightly iridescent ; mouth dark-green. 
Length, 2:25 ; breadth, 24; angle of spire, 85° to 103°. 
Var. £.—Spire whorls with one, and body whorl with three, spiral 
rounded: ribs ; columella generally dilated and flattened anteriorly. 
In the young the spire whorls are sometimes sub-spinose. 
Common. Auckland to Dunedin. 
T. granosus, Jartyn,; 7: rubicundus, Reeve, Conch. Lc, f. 11; 
Chenu, f. 2552; Hogg. Trans. Micros. Soc., 1866, pl. xi., f, 51 (teeth.) 
Sub-globose, imperforate, with spiral moniliform ribs ; whorls 4; colu- 
mella with a sinistral depression ; reddish-purple, varied with white ; 
interior white, slightly iridescent. 
Length, 2°15; breadth, 2°35 ; angle of spire, 85°. 
Chatham Islands. Auckland to Dunedin. Auckland Islands. 
The operculum has a convex, sub-central, granular rib, and a sharp- 
edged sub-marginal keel, and forms the genus A/ode/ia of Gray. 
T. shandi, Hutton, CM.M., ~. 35. Spire depressed ; whorls 
flattened, with several moniliform spiral ribs, the marginal rib of the 
body whorl larger than the others; white or pinkish-white, varied with 
brown and purplish-brown ; interior white, slightly pearly. 
Length, °3 ; breadth, ‘5. 
Chatham Islands only. 
The generic position of this shell is at present doubtful, as the oper- 
culum is not known. 
T. lajonkairii, Deshayves, Mag. de Zool., 1839; Reeve, Conch. Lc., 
Jf. 5. Shell ovate, umbilicated ; whorls obscurely undulately irregularly 
ribbed and ridged, two angled in the middle, scaled at both angles; 
scales somewhat laciniated and frondose, gradually fading towards the 
apex ; whitish, banded with green at the angles ; pearly within (Reeve.) 
New Zealand. (Deshayes.) Keeling Island. (Darwin.) 
A large species, distinguished by the vivid green bands on the angles 
of the whorls. I do not think that it really belongs to New Zealand. 
T. undulatus, Chemnitz, Conch. Cab., x., pl. 169, f- 1640-1; 
Reeve, Conch. Ic., f. 3. Shell orbicular, broadly and deeply umbilica- 
ted ; whorls sometimes grooved, sometimes smooth; bluish-green, longi- 
tudinally marked with white zig-zag streaks (Reeve.) 
New Zealand (Earl.) Australia. 
Sub-Family—Astraline. 
Operculum oblong or ovate, with an external, solid calcareous coat. 
Shell trochiform, flat or concave at the base; whorls rugose or spinose, 
the last often stellate or keeled ; aperture usually sub-quadrate. 
Genus, CALCAR—Montfort. 
Trochiform, thick, with a flat or concave base; whorls keeled or 
