TRITON.— Plate XIV. 



Lamarck, Anim. sans vert. (Deshayes' edit.), vol. vi. 



p. 642. 



Murex argus fasciatus, Chemnitz, Conch. Cab., 

 vol. x. pi. 160. f. 1.V22. 



Triton balteatus, Beck. 



Triton doliarius, var. Pfeiffer. 

 Hab. Coast of Tranquebar ; Lamarck. Mouth of the 



Gambia, Africa (found in sandy mud in deep water). 

 I know of no species of Triton in which the number 

 of varices is so variable as in the Triton Tranquebaricus. 

 The specimen here figured from Mr. Cuming's collec- 

 tion, like that figured by M. Kiener, has no varix, 

 whilst a fine example of the species from the collection 

 of Thomas Norris, Esq., (vide Plate XX.) has three. I 

 cannot discover the resemblance which M. Kiener de- 

 scribes between the Tritones Tranquebaricus and cuta- 

 ceus, and M. Pfeiffer is decidedly mistaken in quoting 

 the former as a variety of the Triton doliarius. 



Species 38. (Fig. a (PI. XL), Fig. b and c, Mus. Cu- 

 ming.) 



Triton gibbosus. Trit. testa subtrigono-fusiformi, va- 

 ricibus quaternis ; spird elongato-turritd, suturis 

 profundis, irregularibus ; anfractibus trigono-gib- 

 bosis, transversim creberrime elevato-striatis, obso- 

 lete liratis, liris exiliter nodosis aut verrucosis ; fused ; 

 canali breviusculo ; aperturd parvd, rotunda, fauee 

 alba ; labro radiation plano-expanso, intus denticu- 

 lato. 



The hunchback Triton. Shell somewhat triangularly 

 fusiform, with four varices ; spire elongately tur- 

 reted, sutures deep, irregular ; whorls triangularly 

 gibbous, encircled with very close, raised stria?, 

 obsoletely ridged, ridges faintly noduled or warty ; 

 brown or yellowish brown ; canal rather short ; 

 aperture small, round, interior white ; lip radiately 

 flatly expanded, denticulated within. 



Broderip, Pro. Zool. Soc, 1844. 



Hab. Panama and Monte Christi, West Columbia (found 



in coarse sand at the depth of seven fathoms) ; 



Cuming. 

 The form of this shell not much unlike that of " the 

 finned frog" {Ranella pulchra) in all but the arrange- 

 ment of the varices, there being considerable resem- 

 blance in the deeply indented sutures, the small round 

 aperture, and in the flat, radiately expanded lip. 



Species 56. (Mus. Cuming.) 



Triton doliarius. Trit. testa ro/undato-ovatd, tenui, 

 ventricosd, varice nulla ; spird obtuso-depressd ,■ an- 

 fractibvs superrie plano-angulatis, liris elevatissimis 

 compressis cingulatis, liris striatis, crenulatis, nodo- 

 sis, leviter vndulutis, interstitiis profundi excavatis ; 

 spadiced avt fuscescente ; columella alba, I icvi ; canali 

 brevissinw, umbilicato ; apertuni amphi, fauce alba ; 

 labro tenui, undato. 



The tun-shaped Triton. Shell rotundately ovate, 

 thin, ventricose. without any varix ; spire obtusely 

 depressed ; whorls flatly angulated at the upper 

 part, encircled with very elevated, compressed 

 ridges, ridges striated, crenulated, noduled, slightly 

 undulated, interstices deeply excavated ; light bay 

 or brown ; columella white, smooth ; canal very 

 short, umbilicated ; aperture large, interior white ;. 

 lip thin, festooned. 



Lamarck, Anim. sans vert. (Deshayes' edit.), vol. vi. 

 p. 641. 

 Murex doliarius, Linnaeus. 



Hab. Cape of Good Hope. 



A light, inflated shell, of very peculiar, Dolium-like 

 growth, exhibiting very little character in common with 

 the rest of the Tritons. 



