202 Zoological Society. 



Triton grandimaculatus. Trit. testd ovato-tiirritd, crassd, in- 

 ferne coarctatd, varicibus tribtts ; spird subobtusd ; anfractibus 

 superne angulatis, tr-ansversim criliter striatis et liratis, liris su- 

 peris tuberciilato-nodosis ; fuscescente-ftdvd, varicibus et columella 

 parte superiori macidis grandibus nigerrimo-fuscis ornutis ; colu- 

 nielld leevi vet obsolete plicatd ; labro iiitus dentato, dentibus niger- 

 rimo-fuscis ; aperturce fav.ce alba ; canali brcviusculo, subascen- 

 dente. 

 Conch. Icon., Triton, pi. 6. f. 20. 



Hub. Matnog, province of Albay, island of Luzon (found on the 

 reefs) ; Cuming. 



This shell appears at first sight to be nothing more than a casual 

 variety of the Triton lotorium ; it will be found, however, upon ex- 

 amination to differ materially. The large tuberculated humps of the 

 Triton lotorium are here represented by regular series of small rounded 

 knobs, which impart a kind of cancellated structure to the earlier 

 whorls which is very characteristic ; the lower part of the shell is not 

 distorted, and the varices, especially at the back, are vividly painted 

 with large distinct brown blotches. 



Tritox sarcostoma. Trit. testd subabbreviato-clavceformi, varici- 

 bus duohus, rotundis, soUdiusculis ; spird brevi, apice subdep7-esso ; 

 anfractibus si/perne angulatis, transversim costatis, costis noduloso- 

 crenatis, costarum interstitiis subtiliter crenato-liratis, costis su- 

 peris tuberculatis, tubercuUs grandibus, prominentibus, subcom- 

 pressis ; spadiceo-fuscescente, costis inter tubercula albimaculatis ; 

 columelld superne et inferne leviter corrugatd, labro intus fortiter 

 rugoso-denticulato ; columelld labroqiie cameo eximie tinctis. 

 Conch. Icon., Triton, pi. 7. f. 21. 



Hab. Island of Ticao, Philippines (found on the reefs) ; Cuming. 

 This shell has somewhat the aspect of the Triton cynocephalus ; it 

 differs in being much less ventricose, and in having very prominent 

 tubercles round the upper part of the whorls. The mouth is stained 

 with a pale flesh-tint without any indication of dark colour on the 

 columella. 



Triton aquatilis. Trit. testd fusiforini-tttrritd, varicibus septem 

 octave rotundis, pro7ninentibvs ; spird elatd ; anfractibus convexis, 

 transversim costatis, costis duplicibns, sitbdistantibus, liris undatis 

 ttihercuUferis longitudinaliter decussatis ; pallide rifescente-fuscd, 

 fusco maculatd et variegatd : columelld et aperturee fauce carneo- 

 tinctis, albirugosis, labro intus albidenticulato ; canali brevi, ascen- 

 dente. 

 Conch. Icon., Triton, pi. 7. f. 24. 



Hab. Island of Ticao, Philippines (found on the reefs at low water) ; 

 Cuming. 



The longitudinal waved ridges which adorn the surface of this 

 interesting species have, in the fine specimen before me, a beautiful 

 ripple-like appearance which is very characteristic. The columella 

 and interior are covered with enamel of a bright uniform flesh-tint, 

 and the varices are very round and prominent. I have seen several 



