120 siPHO, 



Var. ATTENUATA, Jeffreys. PL 51, fig. 305. 



"Differs from the type in being narrower, canal not so tortuous," 

 etc. Length, 43 mill. 



Norway ; W. Coast of Ireland 1180-1215 fms. (Porcupine 



Exped., 1809) ; Bail of Biscay, 1207 fms. 



S. GLABRA, Verkriizen. PI. 51, figs. 306, 307. 



I cannot find vixiy characters Ijy which to clistinguisli this satis- 



factoril}^ from *S. Stimpaoni^ Miirch — the American representatiA'C 



of S. Islandicus. Length, 65 mill. 



Coast of Norway. 



S. Jeffreysianus, Fischer. PI. 51, fig. 308. 



8hell differing from that of S. j^^'opniqiius in being much larger, 

 more A-entricose and solid, and in liaving a conical and shorter 

 spire ; tlie whorls are more convex, and the last occupies eight- 

 elevenths of the shell ; the ridges of the back of the canal are 

 stronger ; the surface is covered with microscopic spiral strire, 

 which intersect the equally fine lines of growth, so as to prodnce 

 a slight and partial decussation ; The epidermis is membranous 

 and deciduous, fibrous near the outer lip, never hispid, and of a 

 brownisli yellow color ; the alternation of size in the spiral ridges 

 gives a lineated appearance to that part of the epidermis on tlie 

 body-whorl which is of a paler color and situated below the 

 peripliery ; the canal is proportionally sliorter, much wider, and 

 more open ; the outer lip is sinuated in the middle ; opei'culnm 

 amber-oolor. Length 2*25 inches, breadth 1'15 inches. 



Enf/Us7i Coast to Bay of Biscay ; coralline zone. 



The description above is copied from Jeffreys, who first de- 

 scribed the species under the name of Fusus Buccinalus, Lam., 

 which is, however, an Euth.ria. 



S. Stimpsoni, Morch. PI. 51, figs. 309, 310, 313 ; PI. 52, fig. 317. 

 This is the North American representative of S. Islandicus, 

 and it has generally been confounded with that species ; it is, 

 liowever, more ventricose, with a shorter, wider and more curved 

 canal. It is a robust shell, with a dark, rougli epidermis. 



Long Island to Massachusetts, northwards to Labrador ; 



deep water. 



The animal is white, with small, irregular black specks ; ej'es 

 black ; foot rectangular, angles rounded. 



