196 BUCCINOPSIS. 



B. Dalki, Sowb. ri. 79, ligs. 387, 888 ; PI. 77, ligs. 355, 35fi. 



Shell egg-shaped, with a truncated base, moderately solid, 

 semitransparent, somewhat glossy ; sculpture numerous very 

 slight and delicate spiral strife, and still moi'e close-set lines ol 

 growth ; these marks are only discernible with a magnifying 

 power, the surface appearing smooth to the naked eye ; color 

 ivory-white ; epidermis extremel}^ thin, pale yellowish white, 

 with a faint tinge of brown. Length 1-15 in., diam. 1 in. 



Animal, bod}' pale yellowish-white, with a faint tinge of flesh 

 color. Egg-cases sometimes deposited on the under side of the 

 maternal shell. 



Ireland and Scotland, Norway, Bchring^s Straits, Sea of Ochottik. 



Dredged 40 to 160 fathoms. Fossil in the Red and Cornlline 

 Crag, and Antwerp Crag. A specimen from the latter deposit, 

 in the Brussels Museum, measures 3*75 ins. long by 1"75 ins. 

 in diam. Among the synonyms may be mentioned B. oroides. 

 Middendorff (fig. 355), and B. ovurn^ Turton (fig. 388). 



Var. EBURNEA, Sars. Fig. 356. 



Shell smaller and thinner, with the spire more produced. 



B. Nux, Dall. 



Short, ver}' solid, smooth, except for microscopic revolving 

 stricTB, with an ivory-like surface, which in 3'oung living speci- 

 mens is covered with a beautifully reticulated, short, velvety 

 epidermis, of a brownish color. Tlie adult shell is white or with 

 a band of livid purple. Suture distinct; si)ire very short; 

 whorls five, last vcr^- much the largest, very rotund. Outer lip 

 thickened, smooth, projecting Ix-youd the columella, whose 

 anterior edge is smoothly and widel}- twisted, so that a glimpse 

 can be had of the interior axis. Cobnnn thickened, short, some- 

 what arcuated, with no fasciole. 



Length 1-28 inches, width -8 inch. 



Aleutian Mands ; 10 fathoms, rocky bottom. 



Differs from B. JJalei in the epidermis, which, in the latter, is 

 smooth and polished, and in the solidity of the shell. I do not 

 know the species. 



