TRITON, 



Species 25. (Mus. Cuming.) 

 Triton chlorostoma. Trit. testa subtrigono-turritd, 

 crassiusculd, varicibus senis prominentibus ; spird 



elatd ; anfractibus irregulariter convolutis, super ne 

 angulatis, ad unguium farther tuberru/atis, tra/isver- 

 sim costatis, costis nodosis, varices super rudiantibus, 

 iris duabus intervenientibus ; albidd, out griseo-ce- 

 rulescente, fusco varie lineatd et punctata ; columelld 

 rufd, albirugosd ; labro intus denticulate ; apertures 

 fauce rufd. 



The yellowish-red mouth Triton. Shell somewhat 

 triangularly turreted, rather thick, with six promi- 

 nent varices ; spire elevated ; whorls irregularly 

 convoluted, angulated at the upper part, strongly 

 tubercled on the angle, transversely ribbed, ribs no- 

 dulous, radiating over the varices, with two ridges 

 running between them ; white or greyish blue, va- 

 riously lineated and dotted with brown ; columella 

 yellowish red, more or less covered with white 

 wrinkles ; lip denticulated within ; interior of the 

 aperture yellowish red. 



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

 p. 636. 



Hab. Island of Annaa (Chain Island), Pacific Ocean 

 (found on the reefs) ; Cuming. 



The whorls of this shell are very irregularly convo- 

 luted, and have almost a distorted appearance arising 

 from their triangular structure. 



Species 26. (Mus. Cuming.) 



Triton cynocepiialus. Trit. testa ovato-oblongd, ven- 

 tricosd, varicibus duabus rotundis ; spird subobtuso- 

 depressd ; anfractibus rotundis, superne depressis, 

 transversim costatis, costis crenulatis, subdistantibus, 

 varices super prominentioribus, superis nodoso-tuber- 

 culatis, interstitiis elevuto-striutis ; rubido-fuscd, 

 varicibus albimaculatis . epidermide setosd ; colu- 

 melld rufd, macula grnudi iiiijricante-purpured, albi- 

 rugosd, ornatd ; labro farther dentato ; aperturie 

 fuuee rufd ; canali brevi, subcontorto. 



The dog's-head Triton. Shell ovately oblong, ven- 

 tricose, with two round varices ; spire rather ob- 

 tusely depressed ; whorls round, depressed at the 

 upper part, transversely ribbed, ribs crenulated, 



rather distant, more prominent over the varices, 

 upper ribs nodosely tuberculated, interstices be- 

 tween the ribs carved with raised striae ; reddish 

 brown, varices blotched with white; epidermis 

 bristly ; columella" yellowish red, ornamented with 

 a large blackish purple, white wrinkled spot ; lip 

 strongly denticulated ; interior of the aperture red- 

 dish ; canal short, somewhat contorted. 



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

 p. 633. 



Hab. Island of Ticao, Philippines (found in coral sand 

 at the depth of six fathoms) ; Cuming. 

 This species may be recognised by the dark purple 



spot upon the columella ; the tubercles at the back are 



also of a peculiarly round nodulous character. 



Species 27. (Mus. Cuming.) 



Triton tigrinus. Trit. testa trigono-fusiformi, nidi, 

 so/idd, varicibus tribus piano- depressis ; spird at- 

 tenuatd, mucrouatd ; anfractibus lavi-cos/a/is, costis 

 aufractus ultimi subobso/etis, anfractuum parte su- 

 perior! angulatd, tuberculis duabus vel tribus gran- 

 dissimis ad angulum armatd ,- croceo-fuscd, varicibus 

 labrique limbo nigra vel castaneo exilher maculatis ,■ 

 epidermide corned, subfoliaced; columelld Levi: aper- 

 turd expansd, fauce vivid'c aurantio-croced, slrigis 

 maculisque fuscis him- illinc tinctd ; labri limbo un- 

 dulate. 



The tiger-like Triton. Shell triangularly fusiform. 

 rude, solid, with three flatly depressed varices ; 

 spire attenuated, pointed ; whorls smooth, flat- 

 ribbed, ribs of the last whorl almost obsolete, upper 

 part of the whorls angulated, armed at the angle 

 with two or three very large tubercles or humps ; 

 saffron-brown, varices and edge of the lip faintly 

 spotted with black and chestnut ; epidermis horny, 

 rather foliaceous ; columella smooth ; aperture ex- 

 panded, interior vividly coloured with orange-saf- 

 fron, stained here and there with brown spots and 

 streaks ; edge of the lip waved. 



Broderip, Pro. Zool. Soc, 1833. 



Hab. Guacomayo, Central America (found in sandy mud 

 at the depth of eleven fathoms) ; Cuming. 

 " This fine shell," says Mr. Broderip, " bears some 



April 1S44. 



