71 



Ocean. Those exhibited on the present occasion were accompanied 

 by characters by M r. G. B. Sovverby. 



Genus Triton. 



Tbiton clathratus. Trit. testd oblonga, turritd, crassd, albidd, 

 Jusco maculatd ; aufractibus octo, decussatim.sukatis, granosis ; 

 ■suturd crenulatd; varicibus irregularibus, crassis, transversim 

 sulcatis, longitudinaliter striatis ; apertura subovatd, margine in- 

 ternd labii externi denticulatd, labio columellari granuloso : long. 

 1-2, iat. 0-6 poli. 



Hab. ad Insulam Annaa. 



Found on the reefs. — G. B. S. 



Triton nitidulus. Trit. testd lurritd, crassiusculd, politd, 



Juscescente, maculis saturatioribus variis pieta; anfractibus de- 



cem, inferioribus Icevibus, superioribus longitudmaliter granoso- 



striatis ; labio columellari icEvissi^yio ; varicibus albicantibus : 



long. 1-5, Iat. 05 poli. 



Hab. ad Insulam Annaa. 



Found on the reefs. — G. B. S. 



Triton distortus. Trit. testd oblongo-turritd^ crassiusculd, ro- 

 seo-albicante, fosco maculatd et nebulosd ; anjractibus undecirii 

 irregulariler tortuosis, seriatim graniferis, irifra suturam crenu- 

 latis ; varicibus secundis, Icevibus, antice granulosis ; labio co- 

 lumellari antici expanso, granuloso ; margine internd labii ex- 

 terni denticulatd : long, 1*6, Iat. 06 poli. 



Hab. ad Insulam Annaa. 



Found on the reefs. — G. B. S. 



Triton reticulatls. Trit. testd turriia, acuminatd, Juscescente, 

 maculis nebulisgue saturatioribus pictd ; anfractibus decem reti- 

 culatis, suturd impressd ; varicibus reticulatis ; margine interyid 

 labii extemi dentatd ; labio columellari antice rugoso : long. 13, 

 Iat. 0-4- poli. 



Hab. ad Insulas Gallapagos. 



Found under stones. — G. B. S. 



Triton Mediterraneus, Trit. testd turritd, acuminatd, Jusces- 

 cente, maculis nebulisque saturatioribus, nonnunquam strigisįue 

 pictd ; anfractibus novem, reticulatis, suturd distinctd ; vari- 

 cibus elevatis, latere dorsali profunde impresso, lineis transversis 

 elevatis ; margine internd labii extL'rni dentatd ; labio columel- 

 lari antice ruguloso : long. 1 ", Iat. 0'35 poli. 



Hab. ad oras Sicilise. 



This nearly resembles the last. It is placed here in order that 

 the differences between the two may be seen by a comparison of 

 the descriptions. — G. B. S. 



Triton Ceylonensis. Trit. testu turritd, gracili, pallescente, 

 Jusco maculatd et variegatd; anjractibus undecim, anticis octo 

 reticulatis, suturd subinconspicua ; varicibus depressis ; apertura 

 oblonga, margine labii externi internd denticulatd, p)eritremate 

 reJlexo, antice dilatcto ; labio ezterno expanso : long. \'Q5, Iat. 

 0"55 poli. 



Hab. ad Insulam Ceylon.— G. B. S. 



