208 Zoological Society. 



has a very prettj' appearance, arising from the dark hrown upper and 

 lower portions of the ribs being- crossed by white striae. 



Tritox siphonatus. Trit. testd fusiformi-ttirritd,varicibus novem, 

 subindistinctis ; spird acuminata ; anfractibvs creberrime reticn- 

 latis, ultimo antice quasi siphonato ; rosea- aut cceruleo-albidd, 

 aurantio-fusco spursim maculatd ; lamina columellari tenui, lavi ; 

 aperturd elongato-ovatd; labro subtilissime denticulate. 



Conch. Icon., Triton, pi. 18. f. 81. 



Hab. ? 



Chiefly distinguished by its anterior extension. 



Triton decapitatus. Trit. testd eloagato-tiirritd, varice nulla; 

 spird decollatd ; anfractibus langitudinaliter concentrice castellatis, 

 costellis angustis, numerosis, confertis, transversiin striatis ; lutes- 

 cente, fusco subindistincte maculatd ; costellis aurantio-fuscis, 

 lined lutescente antice interruptis, anfractu ultimo lineis lutescen- 

 tibus duabus ; canali brevissima. 



Conch. Icon., Triton, pi. 18. f. 85. 



Hab. Island of Burias, Philippines (found under stones at low 

 water) ; Cuming. 



Care must be taken not to confound this species with the Triton 

 iruncatus, in which the ribs are larger and wider apart, and the colour 

 not interrupted. 



Triton digitale. Trit. testd oblongd, varice nulla ; spird aaimi- 

 natd; anfractibus seriatim granulosis, granulis numerosis, confertis, 

 obtusis ; albidd, fuscescente sparsim punctata ; canali brevissimo . 



Conch. Icon., Triton, pi. 19. f. 86. 



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

 water) ; Cuming, 



The sculpture of the shell is much like the granular surface of a 

 thimble. 



Triton concinnus. Trit. testd oblongd, tenuiculd, varice nulla ; 

 spird subacuminatd ; anfractibus langitudinaliter concentrice cas- 

 tellatis, transversim creberrime striatis ; lutescente, aurantio- 

 fuscescente peculiariter pictd, apice roseo-purpureo ; canali bre- 

 vissimo. 



Conch. Icon., Triton, pi. 19. f. 87. 



Hah. Philippine Islands; Cuming. 



The bright orange-brown painting is peculiarly festooned, as it 

 were, round the upper part of the whorl next the suture. 



Triton angulatus. Trit. testd oblongd, turritd, varice nulla; 

 spird acmninatd ; anfractibus superne angulatis, langitudinaliter 

 castellatis, transversiyn striatis, striis praminentibus, confertis ; 

 luted, aut lutescente-albd, rubida-fusco albaque .sparsim punctata ; 

 canali brevissima. 



Conch. Icon., Triton, pi. 19. f. 88. 



Hab. Island of Ticao, Philippines (found under stones at low 

 water) ; Cuming. 



Chiefly distinguished by the angular structure of the whorls next 

 the suture. 



