116 



transversim crenulato-costatis, ad angulum fortiter tuberculatis, 

 tubercuUs acutis, inferne evanidis, transversm subtiliter sulcatis ; 

 rubidd, varicibus albimaculatis ; epidermide subsetosa ; columelld 

 rufo-aurantid, maculd grandį, nigricante-purpured, albirugosd, 

 tinctd ; canali subelongato, subcontorto ; aperiura fauce rufo- 

 aurantid ; labro hitus fortiter dentato. 

 Conch. Icon., Triton, pi. 13. f. 49. 

 Hab. Philippine Islands ; Cuming. 



This shell, which is not uncommon in coUections, approximates 

 very closely to the Triton cynocephalus ; it is however specifically di- 

 stinct. The whorls of the Triton moritinctus are very strongly tu- 

 bercled, the tubercles being disposed in waved longitudinal rows, 

 ■vvhilst in the Triton cynocephalus the tubercles have more the appear- 

 ance of regular nodules. 



Triton exaratus. Trit. testd subtrigonofusiformi, varicibus 

 duobus; spird elevato-turritd ; anfractibus superne planissimo- 

 angulatis, ad angulum subnodosis, transversim liratis, liris com- 

 pressis, duplicatis, crenulatis, interstitiis excavato-sulcatis ; albidd, 

 fuscescente ccsruleogue varie tinctd; columelld albd, subrugosd ; 

 canali longiusculo ; apertvrd rotundd ; labro intus dentato. 

 Conch. Icon., Triton, pi. 13. f. 50. a and b. 

 Var. ft. Testd nigricante-fuscd, albibalteatd. 

 Hab. North coast of New Holland. 



This is a very characteristic species, ^Yith the transverse ridges 

 standing out in bold relief, and the upper part of the -vvhorls pecu- 

 liarly flat and indented at the suturės. 



Triton ficoides. Trit. testd trigono-ficiformi, varicibus guingue ; 

 spird brevi, obtusd; anfractibus dorsim tumidiusculis, transversim 

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

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

 fortiter dentato. 

 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 M'ere 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. 



Triton acuminatus. Trit. testd subfusiformi, varice nulio ; spird 

 acutissime acuminatd ; anfractibus nurnerosis, transversim elevato- 

 striatis, longitudinaliter costatis, costis subobliguis, crebriusculis ; 

 columelld subtilissime rugosd; canali breviusculo, ascendente ; 

 aperturd parvd, rotundd ; 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. 



