FUSUS. 



373 



length of the aperture is less ; the epidermis is drab and strongly 

 corrugated longitudinally, hirsute along the striae, while that of F. 

 Islandicus is horny, close, with the shell flesh-colored be- 

 neath, while that of F. pijirinccus is always white. The 

 stria; are more numerous and more rounded in F. jjij^- 

 mccns, those of F. Islandicus being more grooved as it 

 were. In F. pygmccus the apex is regularly and acutely 

 pointed, while in F. Islandicus we have the distorted but- 

 ton usually found in the young of large convoluted shells. 



Animal purest white, the red buccal mass showing 

 through ; foot large, broadly truncate before, but not at 

 all auricled ; broadly rounded behind, and its sides tending to fold 

 over slightly. (Stimpson.^ 



Halifax (^Willis) ; Eastport, and Grand Manan QStimpson). 



'-' t.pijgmcEus. 



Fusus ventricosus. 



Fig. 200. 



Shell ovate-globose, lilnish-white, covered Avith a thick epidermis; whorls live, 

 marked with revolving lines ; aperture longer than the spire. 



Fusus Islandicus (var.), Kiexer, Species, pi. 15, fig. 2. 



Fusus ventricosus, Gray, in Zuul. to Bccchey's Voyage, 117. — Gould, Inv. 1st cd. 285, 



fig. 200. -De Kay, N. Y. Moll. 144, pi. 8, fig. 183. — Stimpson, Check Lists, 6. 

 Fusus corneus (var.) ? Browx, Conch, of Great Brit. &c. pi. 47, figs. 11,12. 

 Fusus striatus, of Paris collections, on authority of Mr. Sowerby^. — Reeve, Con. Icon. 



pi. 11, figs. 42 a, 6. 



This species is closely allied to F. islandi- ^'" *^°' 



cus in color, marking, and texture. It is, 

 however, much more ventricose, the last 

 whorl composing nearly the whole shell. 

 It maintains its proportions through all the 

 sizes and ages I have seen. It is also short- 

 er and finer lined than F. Sabini, Gray, 

 found in tlie Arctic seas, to which Brown's 

 figure perhaps applies more properly than 

 to this species. 



I have never seen it from any other local- 

 ity than the Bank fishing-grounds, and this 

 may add to its claims to be regarded as a 

 distinct species. Length, one and seven 

 tenths inches ; breadth, one and one tenth inches ; divergence, 

 seventy-eight degrees. Sable Island {Willis). 



F. ventricosus. 



