Zoological Society. 38 1 



Ter. oculata, Lam. 

 Ter. crenulata, Lam. 

 Ter. corrugata, Lam. 

 Ter. duplicata, Lam. 



Ter.pertusa, Sow. Born, Mus., t. 10. f. 13. 

 Ter. nubeculata, Sow. 

 Ter. myuros, Lam. 



The following new species also belong to this section, Ter. Knorrii 

 (differing from Ter. maculata by being more slender, and by having 

 the front of the whorls spotted ; and from Ter. tigrina by the mar- 

 bling of the back of the whorls), affinis (allied to Ter. nubeculata, 

 but smaller and more slender in its proportions), rudis, striata (re- 

 sembles Ter. affinis, but the grooves not punctate), undulata, alba, 

 Jlava, punctatostriata, gracilis, tessellata (differs from all the other 

 spotted species by the hinder belt being destitute of spots), variegata, 

 plicata, punctata, Uevigata, and Icevis. 



II. Anfractibus sulco spirali cingulum posterius efformante ; labio 



interiore incrassato subelevato. 

 Obs. Quoad aperturam Cerithia quodammodo simulantes. 

 Huic sectioni referenda? sunt 

 Ter. cerithina, Lam. 



Ter. tricolor, Sow.— 7b". tceniolata, Quoy, cui proprii sunt insuper 

 sulcum cingulum efformantem sulci alii spirales duo. 



Also the following new species : Ter. anomala, ornata, cancellata, 

 straminea, and triseriata. 



III. Anfractibus sulco postico nullo. 

 * Labio interiore tenui. 

 a. Testa elongatd, gracili. 

 Ter. lanceolata, Lam. 

 Ter. strigillata, Lam. 



Ter. hastata, Lam. — Ter. costata, Mcench. 

 And a new species, Ter. albida. 



b. Testa brevi. 

 Ter. aciculata. — Buccinum aciculatum, Lam. 

 Ter. polita. — Buccinum politum, Lam. 



** Labio interiore incrassato, elevato ; testd brevi. 

 Obs. Nassce quodammodo affines j sed neque labium internum di- 

 latatum, nee externum incrassatum. 



Ter. lineolata, Sow. Wood, Suppl., f. 22. 



Ter. Tahitensis. — Buccinum Tahitense, Gmel. — Buccinum Au- 

 strale, Sow. 



Mr. Gray concluded by stating that specimens of all the species 

 of Terebra enumerated by him are contained either in his private 

 collection or in the British Museum. 



Mr. Gray also exhibited an extensive series of land and fresh- 

 water Shells which he regarded as hitherto undescribed. He cha- 

 racterized them as Helicophanta Falconeri, Reeve, MSS., Zonites 

 Walkeri, and Bulimus atomatus. 



The three following species were discovered in the interior of 

 New Holland by Mr. Allan Cunningham, and two of them have 



