169 
LITTORINID. 
Amnicola? antipodarum, Gray, Fauna New Zeal. 241. n. 101. 
Auckland, New Zealand ; Major Greenwood. 
Amnicola? Zelandiz, Gray, Fauna New Zeal. 241. n. 102. 
Auckland, New Zealand; Major Greenwood. 
Amnicola? n. sp. 
A single specimen, not in a good state. 
Auckland, New Zealand; Major Greenwood. 
Major Greenwood also sent two specimens of a marine shell. He 
observes, that it was “entirely enveloped by the animal when alive.” 
It proved a new species of Lamellaria. 
LAMELLARIA OPHIONE. 
Shell oblong, elongate, pellucid, white ; spire very short, conical ; 
whorls convex, last whorl very large, convex, rather iridescent ; aper- 
ture ovate ; pillar-lip curved, slightly reflexed. 
Auckland, New Zealand. 
2. On THE ANIMAL OF GEOMELANIA. By ArtTHUR ADAMS, 
R.N., F.L.S. etc. 
(Mollusca, Pl. VI. figs. 2, 3, 4.) 
An examination of the animal of Geomelania Jamaicensis, Pfeiffer 
(which the kindness of Mr. Cuming has allowed me to make), shows 
it to belong to the family of Looping-Snails, Truncatellide of Gray ; 
in fact, it differs in no respect from the animal of Truncatella. 
The tentacles are short, conical and depressed, with the eyes large, 
black, and sessile on the middle of the upper surface of their base ; 
the head terminates anteriorly in a broad, flattened bilobate proboscis, 
as long as the tentacles ; and the foot is short, depressed, and divided 
by a deep groove from the head, bearing on its upper hind surface a 
horny, simple, thin, oval operculum, with the apex slightly spiral, and 
the nucleus subterminal. The order, which consists of the genera 
Truncatella, Skenea, Geomelania, and possibly Acicula and Assimi- 
nea, differs from the Cyclostomide in the position of the eyes and 
the short depressed tentacles; and would seem to be placed most 
naturally between Auriculide and Cyclostomide. By means of Ris- 
soa and Hydrobia it has also relations with Littorinide ; Truncatella 
resembling the former and 4ssiminea the latter genus. In habits 
they are amphibious. 
3. DESCRIPTIONS OF NEW SPECIES OF SHELLS FROM THE Cvu- 
MINGIAN CoLLEcTION. By ArtrHuR Apams, F.L.S. 
1. TeLiina squaMutosa. (Mollusca, Pl. VI. fig. 1.) T. testd 
transversd, equilaterali, alba, concentrice in medio plicatd, plicis 
, angulatis subdistantibus, interstitiis longitudinaliter striatis ; 
regionibus lateralibus squamulis spinosis, regione ventrali 
