187 



Has the aspect of a land shell. It has not only the single fold of 

 Odostomia, but at least two others, like PyramideUa. It is probably 

 the type of a new genus. 



Fusus ambustus. T. fusiformis, sub-equilateralis, dilute rufa 

 fusco tincta; spira elongata, acuta, anfr. 8 convexis, subangulatis, 

 liris crebris cinctis, et plicis conspicuis ad 8 ornatis, prope suturam 

 constrictis : apertura parva ; rostro subrecto. Axis li| ; diam. | poll. 

 Mazatlan. Lieut. Green. 



Resembles F. marmoratus Phil., from Australia, which is longer and 

 more numerously ribbed ; and F. rostratus, a smaller shell with re- 

 markably rounded whorls. 



Erato leucopblea. T. subovata, subfusca, solida, valde callosa, 

 callo et basi eburneis ; anfr. ad 4 subangulatis, ultimo superne tabu- 

 lato : apertura angusta, labro antice excavato, concinne denticulato. 

 Long. 1 ; lat. ^ poll. Inhabits Santa Barbara. Col. Jeivett. 



Like E. callosa A. Ad., differing chiefly in color and the finer den- 

 ticulations of the aperture. Also resembles E. columbella Menke. 



Conus ravus. T. solida, ovoideo-conica, bulbosa, spiraliter argute 

 striata et antice liris elevatis alternis majoribus instructa, fulvida, 

 epidermide fuscescente induta : spira elevata ; anfr. ad 8 vix excavatis, 

 ultimi angulo rotundato : apertura angusta antice vix dilatata ; labro 

 postice recedente, intus violacescente. Long. 1 \ ; lat. | poll. From 

 Santa Barbara. Col. Jewett. 



Has the form of C. solidus, cozlebs, and mozambicus, and more espe- 

 cially of C. fabula Sowb. It differs in color from all except C. code bs, 

 which is more slender, and has distinct granular strise. 



Conus comptus [is declared to be a rubbed specimen of a young 

 C. purpurascens = C. achatinus Menke]. 



Conus pusillus. T. parva, conica, polita, seriebus ad 8 granulo- 

 rum remotorum antice cincta : spira planulata ; anfr. 8 coronatis con- 

 structa; alba maculis obliquis elongatis irregularibus aurantiacis bi- 

 cincta ; apice rufo : apertura angusta, linearis. Axis 0.5 ; diam. 0.3 

 poll. Inhabits Mazatlan. Col. Jeivett. 



Allied to C. sponsalis, especially in coloring, but is smaller, without 

 convex outline, more elongated, spire much less elevated. Nearly 

 the same remarks apply to C. nanus. 



Osteodesma nitidum. T. transversa, subfalcata, ventricosa, 

 tenuis, lucida vivide margaritacea, concentrice undulata, plerumque 

 nuda ; apice ad trientem anteriorem ; extremitate antica rotundata ; 

 extrem. postica attenuate, truncata, subadscendente, utraque extre- 

 mitate lineis radiantibus remotis striata. Long. | ; lat. et alt. § poll. 

 Inhabits Santa Barbara. Lieut. Green. 



More inequilateral, more recurved, more pearly and free from 



