BUCCINUM. 285 



reckoning." In his orderly fashion he placed these in 

 the lowest rank, but the cherub, unicorn, and phosnix 

 foremost in the scale of creation. The Buccina affect 

 principally, if not exclusively, the temperate and colder 

 seas of both hemispheres. Dr. Stimpson has given a 

 review of the northern species in the ' Canadian Natu- 

 ralist' for October 1865. Whether all those which he 

 reckoned distinct will stand the test of a more extensive 

 examination of this extremely variable group is ques- 

 tionable. (sfa;) 



K?4<j2- 1. BUCCINUM UNDA'TUM*, Linne. |l.*t- 



B. undatum, Linn. S. N. p. 1204; F. & H. iii. p. 401, pi. cix. f.3, 5, and 

 (animal) pi. LL. f. 5. 



BODY varying in colour from dirty white to yellowish, 

 speckled or streaked with black : mantle rather thick, folded 

 over the pillar of the shell : pallial tube extensile, protruded 

 an inch or more beyond the canal, recurved, and obliquely 

 truncated at the extremity : head small, narrowish : proboscis 

 very long and powerful, enclosing a muscular sheath, within 

 which lies the tongue : tentacles flattened, long, and pointed, 

 abruptly thickened at the base : eyes very small, placed nearly 

 one-third of the way up the tentacles : foot oblong, with 

 shelving sides, capable of considerable expansion and disten- 

 tion, rounded in front, with small ear-shaped corners, and 

 bluntly pointed behind : verge large and fleshy, with a short 

 point at the extremity [: odontophore; central tooth armed with 

 7 cusps or points in a comb- like manner ; shaft of the side tooth 

 having 3 notches, the lowest being the largest. (Loven)]. 



SHELL conical above the periphery or centre of the body- 

 whorl, and somewhat truncated at the base, more or less solid 

 (according to the habitat), opaque, and usually lustreless : 

 sculpture, numerous fine thread-like spiral ridges, some of 

 which are much stronger than others and are arranged in 

 bands (from 3 to 7 small ridges between every large one) ; 

 the whole surface is covered with extremely delicate and close- 

 set longitudinal striaB, which seldom, however, cross the spiral 

 ridges so as to cause any decussation ; the upper portion of 

 the body-whorl and of the four or five preceding whorls is often 

 * Waved. 



