2 LATIAXIS, 



complanatim declivilnis ; ultimo infra medium coarctato, ad 

 caualem moderate espanso exfoliato umbilicato; apertura 

 triooua, intus lirata, maroine crenato, canali breviusculo 

 fere recto. — This species may be said to partake the characters 

 of L. Mawaj in a moderate degree, excepting in tlie laxity of 

 the whorls. 



3. CARINIFERUS, f. 6, Sowerby. — Testa quam I>. Deburghia^ 

 brevior latior, liris spiralibus rugoso-prominentibus, undu- 

 latis, laminis extantibus ad angulum brevioribus. — The form 

 is shorter, the crowning lamino3 shorter and tbe spiral ridges 

 much more prominent and undulating. 



4. ELEGANS, f. 4, Angas. — Testa subovata albida, liris 

 scabrosis spiralibus cincta; spira subelevata, acuminata, 

 anfractibus acute angulatis, ad angulum laminis granosis 

 trigonis coronatis ; supra coronam declivibus ; ultimo ad 

 medium lamiuatim spinoso, infra angulum serrato unilirato, 

 infra medium squamoso sulcato, ad canalem tortuo ; apertura 

 subtrigona margine spinoso, canali brevi, obliquo. — The last 

 whorl has not only tlie broad laminated corona on the angle, 

 but also another inclining downwards in the middle, and 

 a serrated ridge between. The spire is more elevated than 

 in that of L. Deburghice. 



5. Gravesii, f. 7, Broderi/p. — Testa fulva angulata 

 crassa; spira elevata acuminata, anfractibus angulatis, ad 

 angulum spinis triangularibus compressis coronata ; ultimo 

 soinis ad angulum latis prominentibus, infra angulum lira 

 serrata, medio et infra seriebus tribus spinarum ornato, axe 

 angustiusculo, vix umbilicato, apertura subtrigona alba, intus 

 lirata, margine spinoso. 



6. MURICATUS, f. 12, 13, Hinds. — Testa alba, acute quadri- 

 gona minute scabroso-striata ; spira exserta acuminata, 

 anfractil)us acute angulatis supra angukun declivibus, ad 

 angulum latissime spinis latis compressis coronatis, ultimo 

 infra medium spinis latis trigonis cincto, ad canalem anguste 

 subumbilicato. — A curious little wliite shell resembling the 

 rowels of a spur when placed with its head towards the 

 observer. The region of the canal is narrower than usual in 

 this genus. 



7. DiADEMA, f. 11, J. Adams. — Testa pallide roseo-fulva 

 Isevi, distanter varicosa ; spira elongata, acuminata, anfrac- 

 tibus promiuente scalariformibus angulatis, ad angulum 

 alminatim spinosis, ultimo biangulato, varicibus ad angulum 



