tibus subnngitlalis, h'inc et hinc. suhnodosis, anfradu hasali vcn- 

 tricosu, latOjCl sutiiram jutta carinato ; spira elongatd, attenuatd ; 

 croceo-fuscil , varicibus et labri limbo externo, nigro vel cnstaneo 

 vuiculatis ; apertiird eipansd, mcranliacd, strigis et maculis nigro- 

 cnstaneis pictd; epidermide Jitscd, subfoliaced: long. Q%, lat. 4 

 poli. 

 Hah. in America Centrali. (Guacomayo.'i 



This fine shell bears some distant resemblance to Trit.Jemoralis, 

 aml tlierc was a specimen in the Tankerville collection marked No. 

 niH. a. in tlie Cataloguo as a variety of that species in these terms: 

 " Var. notabilis, latissima, apertura expansa." Tliis resemblance is 

 greater in dvvarfs than in well-grown individuals, but the length and 

 shape of the spire, the comparative smootliness, the breadth of the 

 ventricose body-\vhorI, the expanded aperture with its rich orange 

 mouth, variegated towards the border of the oiiter lip with dark 

 chestnut stripes in pairs, and the shortness of the canal, indicate that 

 Trit.tigrinus is vary distinct from Trit .J'emoruUs ; and Mr. Sovverby, 

 who drevv tip the Tankerville Catalogue, is now of that opinion. The 

 throat or internal part of the aperture is of a bUieish white, and, as 

 in the ręst of the s})ecies, tiie outer lip, and, conse(]uently, the va. 

 ricea, acquire a greater thickness as the shell advances in age. The 

 epidermis is particularly foliaceous upon the varices and edge of the 

 cuter lip. 



Mr. Cuming dredged up this species at Guacomayo from a bot- 

 tom of sandy mud at the depth of eleven fathoms. — W. J. B. 



Triton uuDfs. Trit. testd avuto-fusiformi, fulvd, transversiin 

 lineald, loiigitudinaliler tinduloso-nodosd ; aperturd albd, fabro 

 intiis denticidato ; epidermide Juscd, rugosd: long. 1|, lat. \% 

 poli. 

 Hab. ad Peruviam. (IqiiĮqui,) 



The aperture ofthis shell has the appearance of white porcelain, 

 and the internal denticles, placed about the eighth of an inch from 

 the margin of the lip, are ranged in a line. There are a few obscure 

 plaits towards the bottom of the plliar, and the canal is open, very 

 sliort, and somevvhat recurved. This species approaches Buccinum 

 very closely. 



Found in mud and sand at a depth of from six to ten fathoms, and 

 in coarse gravel at the depth of nine fathoms. — W. J. B. 



TiiITON LiNEATUS. Trit. testd sub-^usiformi, undtdato-nodidosd, 

 subcancellatd, pallide Jlnva lineis transversis crenulatis, Jjisco- 

 cnstaneis, Jrequentibus vittntd; anfractibus subventricosis, vari- 

 cibus crassis ; aperturcB ovatcE margine albo, denticulato, fouce 

 atro-ptirpured: long. '2,1, lat. I į^ poli. 

 Hab. ad Insulas Gallapagos. 



In young shells the rich dark purple of the throat, with its denti- 

 culated \vl)ite border, is absent, but in these the varices are thick 

 and large. In a young shell ofthis species I found the remains of 

 a very beautiful Pagurns, which is nevv to me. The legs, two of 

 which are the only visible remnants, are of a brownish black, and 

 the feet aro tipped \vith red. The body vvhorl of Tnt. lincatus (in- 



