193 PLANAXID^. 



These are of a rich brown colour and consist of seven whorls ; 

 spire more acuminate than in the next form. 



7 Mare, Loyalty Islands ; ex c. F. Layard, Esq. 



It was, I suspect, one of the specimens from this locality, oat 

 of Mr. Hanley's collection, that was figured by Sowerby in the 

 Con. Iconica ? They are almost quite black, of six whorls ; two 

 have a peculiarly shortened spire and may belong to a distinct 

 form. 



Long. 12, diam. 7 mil. 

 1 Camorta, Nicobars; coll. F. A. de Roepstorff, Esq. 



Long. 10, diam. 5^ mil. 



Quite black, of six whorls ; exactly resembles Sowerby 's 

 fig. 13. 



17. Planaxis niger. 



Planaxis niger, Quay, Voy. de V Astrolabe, 1832, New Ireland, anfr. 4 — 

 long. 4, diam. 2 lin., " spire courte, obtuse, corrodee, 3 — 4 stries a la 

 base" ; = P. abbreviatus. Pease, P. Zool. S., 1865, Central Pacific — 

 lonff. 10, diam. 6 mil. 



It would almost seem as if the description and figures of 

 Quoy applied to two distinct species, the former undoubtedly 

 referring to this species and the latter resembling more closely 

 the preceding (except the line denoting natural size, which 

 refers to the former) ? 



5 Tahiti; coll. H. Pease (typical PI. abbreviatus) and ex Mus. Godeffroy. 

 1 Arakan ; coll. R. Hungerford, Esq. 



Long. 8|, diam. 5 mil. 



Spire short, obtuse, and corroded ; four whorls, 3 — 4 sulca- 

 tions at base of the last whorl ; jet black, with aperture much as 

 in preceding specimens, denticulations being almost obsolete, but 

 a good deal more developed than in Taliiti specimens, which 

 also have the last whorl more tumid ; tooth above columella 

 remarkably developed in this specimen, much as in fig. 12 of 

 Con. Iconica. 



