208 Zoological Society, 



has a very pretty appearance, arising from the dark brown upper and 

 lower portions of the ribs being crossed by white striae. 



Triton siphonatus. Trit. testd fusiformi-turritd, vaincibus novem, 

 subindistinctis ; spird acuminatd ; anfractibus c?'eberrime reticu- 

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

 aurftntio-fusco sparsim maculatd ; lamind columellari tenui, Icevi ; 

 aperturd elongato-ovatd ; labro subtilissime denticulato. 



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



Hab. ? 



Chiefly distinguished by its anterior extension. 



Triton decapitatus. Trit. testd elongato-turritd, varice nullo ; 

 spird decollatd ; anfractibus longitudinaliter concentrice costellatis, 

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

 cente, fusco subindistincte maculatd; costellis aurantio-fuscis, 

 lined lutescente antice interruptis, anfractu ultimo lineis lutescen- 

 tibus duabus ; canali brevissimo. 



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 

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

 not interrupted. 



Triton digitale. Trit. testd oblongd., vnrice nullo ; spird acumi- 

 natd; anfractibus seriatim granulosis , granulis numerosis, confertis, 

 obtusis ; albidd, fuscescente sparsim punct at d ; 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 nullo ; 

 spird subacuminatd ; anfractibus longitudinaliter concentrice cos- 

 tellatis, transversim creberrime striatis ; lutescente, aurantio- 

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

 vissimo. 



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



Hab. 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 nullo; 

 spird acuminatd; anfractibus superne angulatis, longitudinaliter 

 costellatis, transversim sti-iatis, striis prominentibus , confertis ; 

 luted, aut lutescente-albd, rubido-fusco alboque sparsim punctata ; 

 canali brevissimo. 



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. 



