36 



Hah. ad littora Americae Meridionalis. 



Found in sandy mud at various depths, firom seven to seventeen 

 fathoms, at Xipixapi, andin the Bays of Montijo and Caraccas. De- 

 tached valves of a beautiful pink colour were picked up on the sands 

 at Real Liejos and Mazatlan. — G. B. S. 



CoRBULA RADiATA. Corb. tcstd subtrupezifomii, alhidd, prope mar- 

 ginėm ventralem sanguineo radiatd ; latere antico brevi, postico 

 longiore, bicarinato ; intus sanguined: long. 0"35, lat. O* 17, alt. 

 0-25 poli. 



Hab. ad Acapulcam. 



A single specimen was picked up on the sands. — G. B. S. 



CoHBTJLA TENUis. Corb. testd oblongd, albicante, tenui ; latere an- 

 tico superne declivi, antice roiundato ; latere postico longiore, bi- 

 carinato, postice biangulato ; margine posticd declivi ; umbonibus 

 subincurvis; margine dorsali posticd subexcavatd : long, 0'9, lat. 

 0-4, alt. 0-5 poli. 



Hab. in America Centrali. 



One specimen \vas dredged among sandy mud at a depth of twelve 

 fathoms in the Bay of Montijo. — G. B. S. 



Genus Bulinus. 



BuLiNTJS Chilensis. Bul. testd ovali, cinerascenti-fulvd, albido 

 variegatu ; anfractibus guatuor, minutissime rugulosis, ultimo 

 mosimo ; suturd crenulata ; aperturd ellipticd ; perilremute rejleio, 

 albente : long. 1'4, lat. 0'7 5 poli. 



Conchological Illustrations, by G. B. Sowerby, jun. 



Hab. ad Coąuimbo, sub lapidibus. — G. B. S. 



Bulinus punctulifer. Bul. testd ovato-oblongd, subacuminatd , al- 

 hidd, minutissime rugulosd, epidermide tenuissimd flavicante indutd; 

 punctulis nigricantibus, seriatim dispositis, sparsim ornatd ; an- 

 fractibus guingue, ventricosiusculis, suturd sub-impressd ; aperturd 

 ellipticd, superne acuminatd, peritremate tenui: long. \'o, lat. 

 0-1 b poli. 



Hab. in Chili, sub lapidibus. 



From the Questa Prado. — G. B. S. 



Bulinus rugiferus. Bul. testd turrito-pyramidali, brunned ; an- 

 fractibus octo, longitudinaliter rugulosis ; suturd distinctd ; aper- 

 turd subovali ; labio externo tenui, irreguluri; umbilico jiurvo : long. 

 0-5, lat. 0.2 poli. 



Hab. ad Insulam Jacobi, inter Gallapagos Insulas. 



Found under scorise. — G. B. S. 



Bulinus pruinosus. Bul. testd ovato-oblongd, tenui, corned, albo 

 varid ; anfractibus ipnnąue, ventricosis ; suturd profundd ; aper- 

 turd ellipticd, superne acuminatd į umbilico parvo , labio tenui . 

 long. 0-55, lat. 0-3 poli. 



Hab. in Peruvid. 



