TRITON. 



Species 67. (Mus. Cuming.) 

 Triton pygm^eus. Trit. testa oblongo-turritd, subcom- 

 pressd, varicibus undecim, interdum u/roijiie invicem 

 subsequentibus, interdum irregularibus ; spird acumi. 

 until ; anfractibiis longitudinaliter creberrimi liratis, 

 liris granulosis ; fused, interdum stramineo pallide 

 balteatd ; columelld Itevi, canali brevissimo. 

 The pygmy Triton. Shell oblong-turreted, somewhat 

 compressed, with eleven varices, sometimes follow- 

 ing one under the other on each side, sometimes 

 irregular; spire acuminated ; whorls longitudinally 

 very closely ridged, ridges granulated ; brown, 

 sometimes belted with pale straw-colour ; columella 

 smooth, canal very short. 

 Pfeiffer, Revue Soc. Cuvierienne, 1S43, p. 13G. 

 Ranella pygmcea, Lamarck. 

 Ranella lanceolata, Philippi (not of Menke). 

 Hab. Mediterranean, coast of Malta (under stones). 



I refer this shell to the genus Triton according to 

 Pfeiffer, first on account of its immediate affinity with 

 the Triton reticulattts and other turriculated species of 

 the genus, and secondly on account of the irregular dis- 

 position of the varices, which do not always exhibit that 

 complete lateral arrangement characteristic of the Ra- 

 nella. 



Species 68. (Mus. Cuming.) 



Triton crispus. Trit. testa ovatd, subfusiformi, vari- 

 cibus duabus vel tribus ; spird breviusculd ; anfrac- 

 tibvs liris crispis prominentibus, subdistantibus, de- 

 eussatis, liris ad decussationem nodulosis, interstitiis 

 striis crispis elevatis subtilissinie cancellatis ; cinereo- 

 ca-rvlescente, varicibus lirisque albidis ; columelld ex- 

 cavatd, rugosd, callositate supern'e armutd ; canali 

 breviusculo ; labro intus fortiter denticulate 



The crisped Triton. Shell ovate, somewhat fusiform, 

 with two or three varices ; spire rather short ; 

 whorls crossed with rather distant prominent crisped 

 ridges, ridges nodulous at the point of crossing, 

 interstices very finely cancellated with crisped 

 raised striae ; ashy blue, varices and ridges white ; 

 columella excavated, wrinkled, armed at the upper 

 part with a callosity ; canal rather short ; lip 

 strongly denticulated within. 



Reeve, Pro. Zool. Soc, 1S44. 



Hab. ? 



Quite distinct from any hitherto described species. 



fractibus liris parr is obtitsis creberrime deeussatis . 

 intus extusque alba ; columelld excavatd, inferne suh- 

 rugosd ; canali brevissimo; labro intus denticulato. 



The ivory Triton. Shell ovately oblong, with three 

 or four rather remote varices ; spire short ; whorls 

 very closely decussated with small obtuse ridges ; 

 white within and without ; columella excavated, 

 slightly wrinkled at the lower part ; canal very 

 short ; lip denticulated within. 



Reeve, Pro. Zool. Soc, 1844. 



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

 low water) ; Cuming. 

 This shell has somewhat the form of the Triton Qtwyi 



(Sp. 93), an interesting little New Holland species. 



which M. Kiener thought to be the recent analogue of 



Lamarck's fossil Triton viper inn m. 



Species 70. (Mus. Cuming.) 

 Triton nitidulus. Trit. tcstii elongato-turritd, crassd, 

 solidd, varicibus duodeeim aut tredecim, planulatis . 

 spird subcontortd ; anfraetibus lesvibus, nitidis, lineis 

 elevatis, subtilissimis, granulosis, subdistantibus, cin- 

 gulatis,juxta suturam eximi'e crenulatis : fuscescente, 

 saturates balteatd et alternatim maculatd ; columella 

 Icevi, callositate supern'e armatd, encausticd late ex- 

 panse ; canali brevissimo, recurvo. 

 The polished Triton. Shell elongately turreted. 

 thick, solid, with twelve or thirteen flattened va- 

 rices ; spire slightly twisted ; whorls smooth, po- 

 lished, encircled with rather distant, very fine, 

 granulated, raised lines, delicately crenulated next 

 the suture ; light brown, belted and spotted alter- 

 nately with darker brown ; columella smooth, 

 armed at the upper part with a callosity, enamel 

 widely spread ; canal very short, recurved. 

 Sowerby, Pro. Zool. Soc, 1844. 

 Hab. Island of Annaa, Pacific Ocean. 



This shell may be easily recognised by the very deli- 

 cate chains of fine granules with which it is encircled at 

 comparatively rather distant intervals. 



Species 69. (Mus. Cuming.) 

 Triton eburneus. Trit. testa ovato-oblongd, varicibus 

 tribus vel quaternis remotiusculis ; spirit brevi ; an- 



Species 71. (Mus. Cuming.) 

 Triton verrucosus. Trit. testa subpyramidali-oblongd, 

 varicibus quatuor quinisve ; spird mediocri ; anfrae- 

 tibus supern'e impressis, transversim striatis et liratis. 

 liris longitudinalibus prominentioribus deeussatis, ad 

 decussationem nodosis ; aurantio-fuscescente, anfrac- 

 tuum parte inferiori fusco inter nodos articulatd . 

 columelld excavatd, vix rugosd; canali brevissimo. 

 The warted Triton. Shell somewhat pyramidally 



