Zoological Society. 205 



spird brevi, obtusd ; anfractibus dorsim tumidiusculis, transversim 

 liratis, liris nodosis, super varices duplicatis ; columelld nodosa et 

 rugosd, inferrie luteo-sanguineo tinctd ; canali brevi ; labro intus 

 fortiter dent at o. 

 Conch. Icon., Triton, pi. 13. f. 51. 

 Hab. Africa. 



M. Kiener should have been sure of this shell being the Ranella 

 caudata of Say, before he ventured to question the generic appropri- 

 ation of that species. It is quite another thing, and I much doubt 

 if a shell of such bright 'and vivid colour were ever found within the 

 latitude of New York. The Ranella caudata belongs to a small group 

 of RanellcB, of which the R. Muriciformis is the type. 



TiiiTON ACUMiNATUs. Trit. testd suhfusiformi, varice nullo ; spird 

 acutissime acuminata ; anfractibus numerosis, transversim elevato- 

 striatis, longitudinaliter costatis, costis subobliquis, crebriusculis ; 

 columelld subtilissime rugosd; canali breviusculo, ascendente ; 

 aperturd patwd, rotunda; labro intus denticulato. 

 Conch. Icon., Triton, pi. 14. f. 54. 

 Hab. China. 



The Triton acuminatus is another very aberrant form, though be- 

 longing to that interesting section of the genus of which the Triton 

 niveus is the type. 



Triton gracilis. Trit. testd gracili-fusiformi, varicibus tribus ; 

 spird subelatd ; anfractibus tuberculato-nodosis, liris parvis subti- 

 liter decussatis ; lutescente-albd, v el fused, albibalteatd, epidermide 

 tenui subsetosd indutd; columelld fortiter rugosd, albd ; canali 

 subelongato, ascendente ; aperturccfauce albd; labro intus peculi- 

 ariter rug oso -denticulato. 

 Conch. Icon., Triton, pi. 15. f. 58. 

 Hab. Philippine Islands ; Cuming. 



A delicate little species, in which the outer lip is peculiarly fully 

 wrinkled within. 



Triton elongatus. Trit. testd elongato-fusiformi, varice unico 

 subindistincto ; spird acuminata ; anfractibus superne leviter angu- 

 latis, transversim liratis et striatis, liris striisque granuloso- 

 crenatis, aquidistanter nodulosis ; cinered, liris livido-purpureis ; 

 columelld excavatd, rugosd, callositate superne armatd; canali 

 elongate, subcontorto ; labro intus dentato, dentibus binis. 

 Conch. Icon., Triton, pi. 15. f. 59. 

 Hab. Philippine Islands ; Cuming. 



This shell approximates very closely to the Triton vespaceus ; so 

 closely indeed, that I may be thought rather venturous to describe 

 it as a new species. The differences however are as follows : the 

 canal is much more elongated, the whorls are not tubercled, and the 

 beaded ridges are of a peculiar livid-purple colour. 



Triton gemmatus. Trit. testd elongato-oblongd, varicibus quatuor 

 vel quinque ; spird subobtusd ; anfractibus liris, pulcherrime gem- 

 matis, cingulatis, interstitiis striis elevatis longitudinalibus et trans- 

 versis eximie clathratis ; aurantio-lutescente ; columelld rugosd, 



