FUSUS. 



373 



Fisf. G39. 



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

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

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

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

 striee are inore numerous and more rounded in F. p/jg"- 

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

 were. In F. pf/gmccus the apex is regularly and acutely 

 pointed, wliile 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 {Stimpson). 



F.pygmceus. 



Fusus ventricosus. 



Fig. 200. 



Shell ovate-globose, bluish-white, covered with a thick epidermis ; whorls five, 

 marked with revolving lines; aperture longer than the spire. 



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



Fusus ventricosus, Gray, in Zool. to Bccchcy's Voyage, 117. — Gould, Inv. 1st ed. 285, 



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

 Fusus corneus (vcLV.)'? Brown, 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 «, b. 



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 the Arctic seas, to which Brown's 

 figure i)erhaps 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. 



