MOLLUSCA 277 
Fame ZONITIDAE. 
GopwWINIA, n. gen. 
This new genus is proposed for the V7ztrzna caperata of Gould, which has, of 
recent years, usually been placed in f/edzcarion ; it will be seen from the valuable 
anatomical notes of Lt.-Col. Godwin-Austen that there are differences which separate 
the species from that genus. Probably the Vetrzna tenella of Gould also belongs here. 
The types of Heltcarton Férussac (Tabl. Moll. 1821, pp. xxxi, 24) appear to have been 
the Australian forms /reyctnetz and cuvzere. 
(1) Godwinia caperata Gould. 
Vitrina caperata Gould, P. Boston Soc. 11. (1847), p. 181; U.S. Explor. Exped. 
Moll. 1856, pl. 1. fig. 9. 
Flelix newcombi Pfeiffer, P. Zool. Soc. London, 1854 (Jan. 1855), p. 51; Reeve, 
Conch: leon ex, placixxxix. fig. 1321. 
Plate XII. figs. 6—12. 
Has. Kauai (Gould, Perkins).—Oahu (Pfeiffer). 
Very possibly the habitat of ‘Oahu’ is a mistake. 
“The animal is dark, with a rather broad pale pallial margin; foot with a well 
defined central area beneath; the specimen was so much contracted that the mucous 
gland could not be decisively made out; from analogy, however, one should be present. 
There are no shell-lobes, the mantle-edge is curved and well defined. The right dorsal 
lobe is small, and the left lobe is long, narrow, and continuous. 
“The visceral sac has three coils. The buccal mass has a strong, broad, muscle on 
the lower posterior side ; the oesophagus is short, leading into a very capacious stomach; 
the salivary gland is in one compact, rounded mass. Jaw solid, dark sienna in colour, 
with a very straight cutting edge; odontophore long and narrow, with a few large 
median teeth ; at first sight these centrals appear to be simple and straight-sided in form, 
and they are very nearly so, but closer examination shows that the centre and adjoining 
teeth have very small notches on the outer side; these are not cusps. The laterals are 
all curved and aculeate. The dental formula is : 
18—5—1—5—18 
23—I—23 
Unfortunately the generative organs were not seen by me, all this portion being lost 
during dissection, as will sometimes occur in these small species. 
