STROI\IBUS. 



Plate XVI. 



Species 38. (Mus. Cuming.) 

 Stuombus gb.\cilior. Strom!/, testa ovato-conica, siib- 

 ftw/ormi, spird acuminata,, anfractibua leevihus, basi 

 Jeoiter sulcatis, rude ei aubirreguhiriier convolutis, su- 

 perne concavo-decliviiiis, delude nodatis, nodis parvis, 

 sttbacutis, colmnelld callosd, labro siibalato, apertura 

 fauce props lainim obsolete cornigatd ; pallide riifes- 

 cente-auraniid, labri limbo rnfesrente, aperlnrtB faiice 

 alba. 

 The more slender Stuombus. Shell ovately corneal, 

 somewhat fusiform, spire acumiuated, whorls smooth, 

 slightly grooved at the base, rudely and somewhat 

 irregularly convoluted, eoncavely slanting round the 

 upper part, then noduled, nodules small and rather 

 sharp, columella callous, lip slightly winged, interior 

 of the aperture obsoletely wrinkled near the lip ; pale 

 reddish-orange, edge of the lip tinged with red, in- 

 terior of the aperture white. 

 SowERBY, Tankcrville Catalogue, App. p. xx. 

 Hab. St. Elena and Panama, Central America (in sandy 

 mud at a depth of from six to twelve fathoms) ; 

 Cuming. 

 This species is constantly distinguished from the fol- 

 lowing by its rude convolution and comparatively obsolete 

 nodules. 



Species 39. (Mus. Cuming.) 



Strombus pugihs. Slromb. testa ovafo-coiiicd, subobesd, 

 spird aciwiinatd, anfractibus lavibus, basi et apicetu 

 versus sulcatis, siiperne concavis, ad anrjulum fortiter 

 spiiwso-nodatis, columella callosd, labro subalato, aper- 

 turte fauce prope labrum interdiim obscure corrugatd ; 

 aarantio-rnfd, columella et aperture fauce intense car- 

 neolo-r/ifis. 



The armed Strombus. Shell ovately conical, rather 



obtuse, spire acuminated, whorls smooth, grooved at 

 the base and towards the apex, concave round the 

 upper part, strongly spinosc-nodided at the angle, 

 columella callous, lip sUghtly winged, interior of the 

 aperture sometimes obscurely wrinkled near the lip ; 

 orange-red, columella and interior of the aperture 

 deep carnelion-red. 



Linn.eus, Syst. Nat. (12th edit.) p. 12()'.i. 



Hab. West Indies and Gulf of ]Mexico. 



Chiefly remarkable for the strong spine-like character 



of the nodules. 



Species 40. (Mus. Cuming.) 

 Strombus alatus. Stromb. testa ovatu-conicd , subobesd, 

 ■spird acuminata, anfractibus lavibus, basi et apicem 

 versus eonspicue sulcatis, stiperne concavis, ad angulum 

 nodatis, nodis parviusculis, colmnelld valdi callosd, 

 labro alato, aperturce fauce labrum versus corruyatd ; 

 caManeo-fuscd, columelld et apertura fauce intend ni- 

 ■ gricante-castaneis, interdurn carneolo-rufis. 

 The winged Strombus. Shell ovately conical, rather 

 stout, spire acuminated, whorls smooth, conspicuously 

 grooved at the base and towards the apex, concave 

 round the upper part, noduled at the angle, nodules 

 rather small, columella very callous, lip winged, in- 

 terior of the aperture wrinkled towards the lip ; 

 chestuut-browD, columella and interior of the aperture 

 deep blackish-chestnut, sometimes carneUon-red. 

 Gmelin, Syst. Nat. p. 3513. 



Strombus pyrulatus, Lamarck. 

 Hab. Gulf of Mexico. 



It is extremely doubtful whether this is a distinct 

 species from the preceding. The nodules are not so pro- 

 minent, and the spire is generally more strongly grooved. 



January, 1851. 



