TRITON. 



Species 40. (Mus. Cuming.) 



Triton lignarius. Trit. testa globoso-pyriformi, soli- 

 diusculd, varice nulld ; spird brevissimd ; aufractibus 

 longitudinuliter subplicatis, transversim crenulato- 

 liratis, /iris angustis, alternis majoribus, fuscescen- 

 tibus ; luteo-castaned, epidermide villosd reticulata 

 indutd ; columella subexcavatd, luteo-sanguined, albi- 

 denticulatii, callositate alba superne armatd ; cauali 

 mediocri, subrecurvo ; labro vald'e incrassato, intus 

 luteo-sanguineo, albidentato. 



The wooden Triton. Shell globosely pyriform, rather 

 solid, without any varix ; spire very short ; whorls 

 longitudinally plaited, transversely crenulately 

 ridged, ridges narrow, alternate ones larger, brown ; 

 yellowish chestnut, covered with a hairy reticulated 

 epidermis ; columella slightly excavated, yellowish 

 blood-red, denticulated with white, armed at the 

 upper part with a white callosity ; canal middling, 

 a little recurved ; lip very much thickened, yellow- 

 ish blood-colour within, white-toothed. 



Broderip, Pro. Zool. Soc, 1833. 



Hob. Puerto Potrero, St. Elena, and Panama (found in 

 sandy mud at a depth of from seven to twelve 

 fathoms) ; Cuming. 



This is a solid globose shell, remarkable for the blood- 

 red colouring of the columella and outer lip. 



Species 48. (Fig. a and b, Mus. Cuming.) 



Triton Tuersites. Trit. testa subfusiformi, varicibus qua- 

 ternis ; spird exsertd ; aufractibus transversim grano- 

 so-liratis, angulatis, ad unguium tuberculatis, tuber- 

 culis validis, vald'e prominentibus, anfractuum tola 

 superficie subtilissime granulosd ; columelld albd, 

 subexcavatd, leviter rugosd, callositate superne ar- 

 matd,- canali longiusculo,subascendente ; labro intus 

 leviter denticulatu. 



The Thersites Triton. Shell somewhat fusiform, 

 with four varices ; spire exserted ; whorls trans- 

 versely granulously ridged, angulated at the upper 

 part, tubercled on the angle, tubercles strong and 

 very prominent, entire surface of the whorls very 

 finely granulated ; columella white, rather exca- 

 vated, slightly wrinkled, armed at the upper part 



with a callosity ; canal rather long, turned a little 

 upwards; lip slightly wrinkled within. 

 Reeve, Pro. Zool. Soc, 1844. 



Hub. ? 



Several shells have been named after the rude enemy 

 of Achilles as significant of their deformity. The Triton 

 under consideration, though it has quite a hump-backed 

 appearance from the prominence of the dorsal tubercles, 

 is however beautifully granulated, the granulated ridges 

 being especially neatly sculptured in passing over the 

 tubercles and varices. 



Species 49. (Mus. Cuming.) 

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

 tricosd, varice unicd elevatd ; spird depressd ; au- 

 fractibus superne plano-angulatis, transversim crenu- 

 lato-costatis. ad unguium fortiter tuberculatis, tuber- 

 culis acutis, inferne evanidis, transversim subtiliter 

 sulcatis ; rubidd, varicibus albimaculatis ; epidermide 

 subsetosd ; columella rufo-aurantiii, maculd grandi, 

 nigricante-purpured, albirugosd, tinctd; canali sub- 

 elongato, subcontorto ; aperture fauce rufo-aurantid ; 

 labro intus fortiter dent at o. 

 The mulberry-stained Triton. Shell ovately oblong, 

 ventricose, with a single raised varix ; spire de- 

 pressed ; whorls flatly angulated at the upper part, 

 transversely crenulately ribbed, strongly tubercled 

 on the angle, tubercles sharp, disappearing towards 

 the lower part, transversely very finely grooved ; 

 reddish, varices spotted with white ; epidermis a 

 little bristly; columella reddish orange, stained 

 with a large white-wrinkled, blackish-purple spot ; 

 canal rather long, somewhat contorted ; interior of 

 the aperture reddish orange ; lip strongly toothed 

 within. 

 Reeve, Pro. Zool. Soc, 1844. 

 Hub. Philippine Islands ; Cuming. 



This shell, which is not uncommon in collections, 

 approximates very closely to the Triton cynocephalus ; 

 it is however specifically distinct. The whorls of the 

 Triton moritinctus are very strongly tubercled, the tu- 

 bercles being disposed in waved longitudinal rows, 

 whilst in the Triton cynocephalus the tubercles have more 

 the appearance of regular nodules. 



