Zoological Society. 201 



prominent sharp-angled structure of the varices, and the delicate 

 granulated sculpture of the ribs where they are crossed by the raised 

 striae ; and its general appearance is altogether peculiar. 



I take the liberty of dedicating this characteristic species to Dr. 

 Pfeiffer of Cassel, Germany, on account of the diligence that gentle- 

 man has exercised in arranging the synonyms of the genera Triton 

 and Ranella in his " Memoir of the genus Tritonium," Revue Zoolo- 

 gique de la Societe Cuvierienne. 



Triton Sauli^.. Trit. testd elongato-conicd, tubceformi, paululilm 

 contortd, basim versus subangulato-attenuatd, varicibus novem 

 decemve plano-depressis ; spird acuminata ; anfractibus siibangu- 

 latis, nodorum prominentium seriehus duabus infra angulum arma- 

 tis, subtilissime lirntis, liris apicem versus minutissime crenulatis ; 

 albido aut lutescente, ruhido-fusco variegatd et maculatd ; epider- 

 mide tenui ; columella Icevi, obsolete j)licatd, plied albd unicd su- 

 perne munita; labro intus denticulato ; aperturd angulato-ovatd, 

 fauce ccerulescente-albd. 

 Conch. Icon., Triton, pi. 5. f. 17. 

 Hab, Matnog, island of Luzon, Philippines ; Cuming. 

 I vi^as about to figure a somewhat discoloured specimen of this 

 shell, collected by Mr. Cuming at the above-mentioned locality, when 

 a smaller but very richly painted example presented itself for com- 

 parison from the collection of Miss Saul. It is unquestionably di- 

 stinct from any of the trumpet-shaped species, though curiously in- 

 termediate between the Triton variegatus and australis. I now de- 

 dicate it with great pleasure to a much-esteemed collector, whose 

 cabinet bears interesting testimony of her excellent discrimination of 

 species. 



Triton sinensis. Trit. testd elongate -clavaformi, varicibus duobus 

 rotundis ; spird subelatd ; anfractibus costis duplicibus subdistan- 

 tibus undique cinctis, stria unicd elevatd interveniente, costis supe- 

 ris leviter nodosis, costis interstitiisque subtilissime crenulatis; 

 albidd, lutescente tinctd, varicibus inter costas lutescentibus ; colu- 

 melld multirugosd ; labro denticulato ; aperturce fauce albd; canali 

 elongate, subcontorto. 

 Conch. Icon., Triton, pi. 6. f. 18. 

 Hab. China. 



This shell is not uncommon in collections, though it appears to 

 have been singularly neglected by naturalists. It presents a most 

 remarkable modification of the Triton canaliferus : the entire sculpture 

 of the two species — such as, for example, the double rib, the inter- 

 vening raised line, the two only varices, the profusely wrinkled colu- 

 mella, the long slightly twisted canal, &c. — is the same in both ; but 

 the canaliculated structure of the sutures, which forms so very im- 

 portant a specific character in the Triton canaliferus, is wanting. 

 The Triton sinensis might therefore be recognised as an example of 

 the Triton canaliferus with the spire pushed out as it were ; or one 

 in which the whorls have not been subject to that peculiar depression 

 which forms so deep and characteristic a channel round the suture. 



