cluding tlie canal wliicl> is moclerate,) is twice the length of the 

 spire, and much more ventricose tlian the other whorIs. 

 Found in coral sand, in six fathoms. — W. J. B. 



Triton gibbosus. Trit. testd sub-fusiformi, subfuhd vel sub- 

 fuscd, subnodulosd, transversim creberrime lineatd ; nnfractibus 

 subtrigonis; aperturd subrotundd, albd, labri espansi radiati 

 ■margine interno dentato : long. 14, lat. \\ poli. 



Hab. ad Panamam et ad Montem Christi. 



This shell approaches Trit. lineatus, but dIfFers from it in many 



points. T.T T n 



Found in coarse sand at the depth of seven fathoms.— W. J. 15. 



Triton scat.ariformis. Trit. testdfusiformi, aordide alhd, i^ub- 

 canccUatdJineis tnmsversis elevalis, crassiusculis, crenulntts, cre- 

 bris vitlatd; labri limbu subjimbriato ; canali brevi, svbrecurvd : 

 long. I, lat. į poli. 

 Hab. in sinu Montijano. 



This elaborately wroLight spccies has the vances, in vveil-grown 

 specimens, placed with a regularity that almost entitles it to a situ- 

 ation among the Ranellce. lt was found in coarse sand at t!ie depth 

 of ten fathoms. — W, J. B. 



Triton convolutus. Trit. testdfusiformi, spira e:ongatd,albidd, 

 lineis elevatis, subaciitis, creberrimis vittatd; labri margine ere- 

 nulato: long. I h, Int. 4r poli. 

 Mus. Sowerby. 



This species approaches Trit. scnlariformis, hut difters ma*enally 

 from it. The lines which gird Trit. convolutus are much finer, much 

 more frequent than those of Trit. scalariformis, and are without the 

 crenulations that distinguish the coarser ridges of the latter. There 

 are also other points of difference, and the varices are irregular and 

 not arranged in a nearly lateral direction as they are in the last- 

 meritioned species. 



Mr. Sovverby, who sent me this shell, does not knovv its locahty. 

 — W. J. B. 



Genus Turbinella. 

 TuKBiNELLA TUBERCULATA. Turb. testdfusiformi-turritd, trans- 

 versim tuberculato-costatd, et msterstitialiter striatd, anfracti- 

 bus angulntis, anguiis nodulįfcris, albidd costis nodidisque nigro- 

 castaneis ; aperturd albd, columelld 3 — 'l-plicatd: long.ll, lat. 1 

 poli. 

 Hab. ad Insulas Gallapagos. 

 Found under stones. 



This shell, in its general appearance, approaches some of the 

 Pleurotomata, which have a short canal. — W. J. B. 



TuRBiNEULA ARMATA. Turb.testdfusįformi,transversim striatd, 

 tuberculis spinisguc fortibiis muricatd,'griseo cnstaneoquefasciatd 

 et maculatd; aperturd albd; colinnclld6—7-plicatd,labrosimiato, 

 iidils sirialo et dentato, dcntibiis castaneis : long.2'įr, lat. \%poU. 



