MEETINGS OF SOCIETIES. 477 
narrowly perforate ; ribs, 20 in the tenth of an inch; diameter 0.5 
inch. Habitat, Napier. 
Charopa planulata. Horny brown, without markings ; sub-per- 
forate ; ribs, 27 inthetenth of aninch; diametero.15inch. Habi- 
tat, Auckland (Cheeseman). 
Thevasia, n. g—Animal having the dentition of Chavopa with the 
shell of Thalassia. 
Thevasia tamova, Umbilicus narrow; shell conical, irregularly 
plaited ; brownish horn; diameter 0.17 inch. Habitat, Auckland 
Oe Cheeseman). 
Therasia valeria. Whorls strongly striated; sub-perforate ; yel- 
lowish horny, obscurely marked with reddish ; diameter 0.25 inch 
Habitat, Dunedin (Hutton). 
Thevasia thasa. Pale horny, variously streaked with brown, 
sometimes almost quite brown; rather solid; irregularly coarsely 
striated ; umbilicus moderate ; diameter 0.35 inch. Habitat, Waiau, 
Southland (G. M. Thomson). 
Tvachomorpha(?)hermia. Imperforate, closely plicated above, smooth 
below ; horny brown, paler above than below; columella callous, 
white; diameter u.7 inch. Habitat, Manawatu, Wellington. 
Leptopoma pallida. Pale brown, with a pale plicated epidermis ; 
spire conical; diameter 0.13 inch; heighto.2inch. Habitat, Auck- 
land (Cheeseman). 
Cyclotus charnnan. Shell with spiral raised striz, and an undu- 
lating keel, widely umbilicated; diameter 0.6 inch; operculum 
with the calcareous lamina thickened round the margin, and with 
a raised centre. Habitat, Horokiwi, Wellington. 
3. Notes on some Marine Mollusca, by Professor F. W. Hut- 
ton. This paper gives the dentition of six species of marine gas- 
tropods not previously described. Leuconia obsoleta is formed into 
a new genus, called Leuconopsis, distinguished by having only one 
plait on the inner lip. Euthna lineata, var. D., of the Manual ot 
the New Zealand Mollusca, is made a separate species under the 
name E. flavescens. ‘The following new species are described :— 
ZZ olis leptosoma. A small yellowish-white species, with the gills 
brownish-grey tipped and slightly margined with white; there are 
minute eyes, and the foot is not crisped, nor expanded i in front. 
Habitat, Lyttelton. 
Cenithidea tricarinata, Stromal longitudinally plicate and dis- 
tinctly spirally grooved; eight longitudinal plice in a whorl, be- 
low which, in the body whorl, are three sub-equidistant spiral 
ridges. Habitat, Kati-kati, near Tauranga. 
Cingula limbata. Shell polished, but not iridescent; whorls 
flattened ; ashy-brown, more or less marked with white. Habitat, 
Auckland. 
Cyclostvema _iuctuata. Small, spirally grooved, not iridescent ; 
yellowish-white, with irregular bands of pale brown ; operculum 
sub-calcarious, of about six slowly increasing whor rls. Haditat, 
Foveaux Straits. 
Acmeacingulata. Shell rather thick, white, with about 30 to 50 
low radiating ribs; interior white, the margin light brownish-pink, 
banded with white. Habitat, Lyttelton and Dunedin. 
Kellia cityina, Shell minute, pale yellowish, sub-equilateral, 
ovato-rotund, smooth, with fine concentric grooves. Habitat, Ta- 
mati Heads, near Auckland. 
