BUCCINUM. 



369 



Bucciniim Donovani. 



Fig. 208. 



Fig. 636. 



Shell ovate-conic, elevated and pointed ; whorls folded lenojthwise, and marked 

 -with revolving lines; the lowest whorl is encircled by a rounded carina; aperture 

 rounded, lip spreading. 



Bucciniim (flacia/p, Doxov.w, Brit. Shells, v. pi. 1.54. — Brown, Conch, of Great Brit. 



&c. pi. 49. figs. 12, 13. 

 Bucciniim Donovani, Gray, in Znol. to Beechey's Voyage, 128. — Gould, Inv. 1st ed. 



304, tig. 208. — Stimpson, Check Lists, 5. 



Shell ovate-conic, spire elevated and pointed, solid, of a livid 

 brownish color, folded obliquely lengthwise, the lower whorl being 

 merely plaited at the suture, and covered 

 with rather coarse revolving lines ; whorls 

 seven or eight, moderately convex, and 

 gradually tapering ; on the lower one a fiat- 

 tisli rib or keel commences at the junction 

 of the lip, and, revolving, terminates about 

 the lower third of the lip ; suture deep and 

 undulating ; aperture less than one half the 

 length of the shell, rounded, outer lip white, 

 rather thick, and spreading, with a wave at 

 its posterior portion ; inner margin nearly 

 destitute of callus ; throat livid ; canal short, 

 very slightly recurved. Length, two inches ; 

 breadth, one and one tenth inches ; diver- 

 gence, forty-two degrees. 



Inhabits the Bank fishing-grounds. St. 

 Flavie, Canada (^Bell). 



Distinguished from B. undatum by its 

 more slender form, greater polish, its round- 

 ed aperture, and spreading lip, and by the ribs encircling the larger 

 whorl. None of the specimens exhibit more than one well-devel- 

 oped rib, and some of them are destitute of any. It has also a more 

 elongated, and more acute spire, than B. g-laciale, and Dr. Gray 

 seems to have done well in separating it from that species, as 

 it is commonly received. I have seen a few perfect specimens 

 taken from fishes, which correspond accurately with Donovan's 



B. Dnnnvani. 



figure. 



24 



