Kif) 



LlTTORINID^. 



Amnicola? antipodaium, Gray, Fauna New Zeal. 241. n. 101. 

 Auckland, New Zealand ; Major Greenwood. 



Amnicola? Zelandise, 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 Arthur Adams, 

 R.N., F.L.S. ETC. 



(MoUusca, PI. 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, TruncatelUdce 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 

 homy, 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 Cyclostomida in the position of the eyes and 

 the short depressed tentacles ; and woiild seem to be placed most 

 naturally between AuriculidcB and Cyclostomidce. By means of Ris- 

 soa and ^yc^roim it has also relations viith. LittorinidcB ; Truncatella 

 resembling the former and dssiminea the latter genus. In habits 

 they are amphibious. 



3. Descriptions of new species of Shells from the Cu- 



MINGIAN CoLLECTIOlS. By ArTHUR AdAMS, F.L.S. 



1. Tellina squamulosa. (Mollusca, PI. VI. fig. 1.) T. testd 

 transversa, cequilaterali, alba, concentric^ in medio plicatd, plieis 

 angulatis subdistantihus, interstitiis longitudinaliter striatis ; 

 reffionibus lateralibns squamulis spinosis, regione ventrali 



