60 G E N U S B U C C I N U M . 



% 60. BUCCINUM CANALICULATUM, LAM. ^ The Channeled 



Buccinum. ( J - / f/'t 



(Collect. MASS. LAM.) MART., CHEMN., pi. 125, 

 fig. 1194-1195. 



PI. XXll, fig. 89. 



B. testa ovato-conica, superne longitudinaliter plicata, basi striata, pal- 

 lid^ fulva, interdtim castaneo-bizonata ; anfractibus supern6 canaliculatis, 

 duobus infimis dorso laevibus ; apertura ovata, alba, fundo fusca ; labro 

 dextre crasso, intus striato. 



Shell ovate, conical, somewhat ventricose, of a pale fawn 

 color, spire composed of eight whirls ; upper ones longitudi- 

 nally folded, and slightly striated transversely ; the two lower 

 ones smooth, convex and strongly canaliculated ; the lowest 

 furrowed at the base, and frequently ornamented about the 

 middle with two bands of a chestnut-color. Aperture ovate, 

 white, cavity brown ; right lip thick, denticulated upon the 

 edge of the lower part, striated within ; left lip gives rise to a 

 thin and elevated callosity upon the edge of the columella, 

 and towards the top a very prominent transverse fold, forming 

 the commencement of a canal. 



Length 17 lines. Width 8 lines. 

 Inhabits the Indian Ocean. 



This shell, which has been established as a species by La- 

 marck, should, I think, be again united to the B. olivaceum, and 

 should be regarded as a constant variety, either of sex or locality. 

 In some specimens the whirls of the spire are less canaliculated, 

 and the longitudinal folds slightly appear, as in the species to 

 which I presume they belong. 



