TRITON.— Pi ate XVIII. 



Hinds, Zoology of the Sulphur, vol. ii. pi. 4. fig. 78. 

 Hab. New Ireland (among coarse sand at low water) ; 

 Hinds. 

 This shell is distinguished from the preceding species 

 by its having one more whorl, in being of a lighter and 

 more delicately transparent character, and by the pecu- 

 liar manner in which the longitudinal ribs are extended 

 to a point across the suture. 



Species 81. (Mus. Cuming.) 



Triton siphonatus. Trit. testd fusiformi-turritd, vari- 

 cibus novenis, subindistinctis ; spird acuminata ; an- 

 fraetibus creberrime reticularis, ultimo antic'e quasi 

 siphonato ; rosea- aut ctsruleo-albidd, auranlio-fusco 

 sparsim maculatd; lamina columellari tenui, Icevi; 

 aperturd elongato-ovatd ; labro subtilissinie denticu- 

 lato. 



The spouted Triton. Shell fusiformly turreted, with 

 nine rather indistinct varices ; spire acuminated ; 

 whorls very closely reticulated, last whorl spouted, 

 as it were, anteriorly ; pinkish or bluish white, 

 spotted in places with light orange-brown ; colu- 

 mellar lamina thin, smooth ; aperture elongately 

 ovate ; lip very finely denticulated. 



Reeve, Pro. Zool. Soc, 1844. 



Hab. ? 



Chiefly distinguished by its anterior extension. 



Species 82. (Mus. Cuming.) 



Triton decollatus. Trit. testd oblongo-turritd, varice 

 nulla ; spird subobtusd, decollatd ; anfractibus trans- 

 versim sulcatis, sulcis angustissimis, subsuperjiciariis, 

 liris intermediis lavibus, apicem versus reticulatis ; 

 luteo-fuscescente, fusco variegatd, sulcis brunneis ; 

 canali brevissimo. 



The decollated Triton. Shell oblong-turreted, with 

 no varix ; spire rather obtuse, decollated ; whorls 

 transversely grooved, grooves very narrow, rather 

 superficial, intermediate ridges smooth, reticulated 

 towards the apex ; yellowish brown, variegated with 

 brown, grooves dark brown ; canal very short. 



Sowerby, Pro. Zool. Soc., 1833. 



Hab. Island of Annaa, Pacific Ocean (found on the 

 reefs) j Cuming. 



Mr. Sowerby describes this very characteristic spe- 

 cies as having "only a single varix"; it may however 

 have been already noticed ; so that I do not consider the 

 marginal thickening of the lip of a shell to constitute a 

 varix, until it becomes one by a renewal of the growth 

 of the shell; the word varix signifying a swollen vein 

 running over the surface of anything. 



Species 83. (Mus. Cuming.) 

 .'riton truncatus. Trit. testd elongato-turritd, varice 



nulld ; spird multum decollatd ; anfractibus longitu- 

 dinaliter concentrice liratis, transversim subtilissinie 

 elevato-striatis ; lutescente-aurantid, maculis gran- 

 dibits fuscis seriatim pictd ; canali brevissimo. 



The truncated Triton. Shell elongately turreted, 

 with no varix; spire considerably decollated; whorls 

 longitudinally concentrically ridged, transversely 

 crossed with fine raised stria? ; yellowish orange, 

 painted with rows of large brown spots ; canal 

 very short. 



Hinds, Zoology of the Sulphur, vol. ii. pi. 4. fig. 9 and 10. 



Hab. Island of Bohol, Philippines (found under stones 

 at low water) ; Cuming. New Ireland ; Hinds. 

 I think this is without exception the most perfectly 



decollated marine shell I remember to have met with. 



Species 84. (Mus. Cuming.) 



Triton bracteatus. Trit. testd oblongo-ovatd, varice 

 nulld ; spird subacuminatd ; anfractibus longitudina- 

 liter concentrice costatis, transversim striatis, striis 

 confertis ; lutescente-albd, costis cmruleo-nigricante 

 creberrime maculatis ; canali brevissimo. 



The plated Triton. Shell oblong-ovate, with no 

 varix ; spire rather acuminated ; whorls longitudi- 

 nally concentrically ribbed, transversely striated, 

 strise close-set; yellowish- white, ribs closely spotted 

 with bluish black ; canal very short. 



Hinds, Zoology of the Sulphur, vol. ii. pi. 4. fig. 5 and 6. 



Hab. Island of Capul, Philippines (found under stones at 



low water); Cuming. Marquesas Islands ; Hinds. 



A neat solid shell, in which the ribs are very fully 



spotted with bluish black. 



Species 85. (Mus. Cuming.) 

 Triton decapitatus. Trit. testd elongato-turritd, varice 

 nulla; spird decollatd; anfractibus longitudinaliter 

 concentrice costellatis, costellis angustis, numerosis, 

 confertis, transversim striatis ; lutescente, fusco sub- 

 indistincfe maculatd ; costellis aurantio-fuscis, lined 

 lutescente antice interrupts, anfractu ultimo 'lineis 

 lutescentibus duabus ; canali brevissimo. 

 The beheaded Triton. Shell elongately turreted, 

 with no varix ; spire decollated ; whorls longitudi- 

 nally concentrically ribbed, ribs narrow, numerous, 

 close-set, transversely striated ; yellowish, some- 

 what indistinctly spotted with brown ; ribs orange- 

 brown, interrupted anteriorly so as to leave a yel- 

 lowish line round each whorl, the last whorl having 

 two ; canal very short. 

 Reeve, Pro. Zool. Soc, 1844. 



Hab. Island of Burias, Philippines (found under stones 

 at low water) ; Cuming. 

 Care must be taken not to confound this species with 

 the Triton truncatus, in which the ribs are larger and 

 wider apart, and the colour not interrupted. 



