63 



III. Anfractibus sulco postico fiullo. 



* Labia intcriore tenui, 



a. Tesid elongatd, gracili, 



Ter, lanceolata, Lam. 



Ter. strigillata, Lam. 



Ter. hastata, Lam. — Ter. co-3tata, Mcench. 



Terebra albiba. Ter. tesld turritd, ovato-subulatd , acumi-^ 



natd, Icevi ; anfractibus planis, suturd subivipressd ; palhde 



Jlavescenti-albidd. 

 Axis It unc. 



b. Testd brev'i. 



Ter. aciculata. — Buccinum aciculatum. Lam. 



Ter. polita. — Buccinum politum, Lam. 



** Labio interiore incrassato, elevato ; testd hrevi. 



Obs. Nass(C quodammodo affines ; sed neque labium internum di- 

 latatum, nee externum incrassatum. 



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



Ter. Ta/ti^eHsis.— Buccinum Tahitense, Gme/.— Buccinum Au- 

 strale. Sow. 



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

 oi^exebra enumerated by him are contained either in his private 



ritish 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 follows : 



Helicophanta Falconeri, Reeve, MSS. Hel. testd ovatd, tenui, 

 vesiculari, profmde utnbiUcatd ; pallide hrunned, fasciis macu- 

 lisque prope suturam saturatioribus ; apice obtuso ; anfractibus 

 quatuor convexis, ultimo antice declivi ; umbilico magna, com- . 

 presso ; peristomate simplici, fauce albd. 

 Hab. in Nova Hollandia. 



This species is very nearly allied to Hel. magnifica, Fer., Moll., 

 t. 10. f. 10, but differs in .being much more umbiHcated and ven- 

 tricose, having a greater number of whorls, and being deeper co- 

 loured. 



Zonites Walkeri. Zon. testd depressd,iimbilicatd, poUtd.flavo- (^f^' 

 brunned; anfractibus 3 J- citissime majoribus, ventricosis, tenuiter 

 concentrice striatis ; dorso striis densis spiralibus ,• umbilico pro- 

 funda ; aperturd magnd, fauce albidd. 

 Axis 8 lin., diam. 1 unc. 



Hab. in Nova Hollandia, 70 millia passuum circiter a Fort Mac- 

 quarrie. 



This species is allied in form and size to Zon.fuliginosus of North 



