GENUS BUCCINUM. 83 
8. BUCCINUM ABBREVIATUM, Woop. The Tun Buccinum. 
(Collect. Mass.) Cuemn., pl. 153, fig. 1463, 1464 et 1466. 
Pl. XXVI, fig. 105. 
B. testa ovata, ventricosa, albescente vel castaned, albo et fulvo fasciata, 
transversim striata; spira brevi; suturd canaliculata ; apertura alba, subro- 
tundata ; labro dextro tenui, crenulato, intus striato. 
Shell ovate, ventricose, of a whitish or chestnut color, 
marked sometimes with deeper spots; suture deep and canali- 
culated, the exterior edge of which is slightly rounded and 
surrounded by a white band, alternated with fawn-colored 
blotches. Spire scaffolded, formed of six or seven nearly flat 
whirls ; the lowest,.on the contrary, is very convex, and larger 
than all the others united. . Upon the surface of this shell, are 
seen equal, raised strie. Aperture white, sub-rotund, narrowed 
at the upper part, dilated inferiorly ; right lip thin, crenulated 
upon the edge, and marked interiorly with very prominent 
transverse strie ; columella arcuated, covered by the left lip, 
which is obliterated, flattened and corrugated above ; it forms, 
from the middle to the base, a thick and projecting callus, 
which is terminated by a very apparent fold, and by two 
guttules. : 
Length 13 lines. Width 10 lines. 
Inhabits the Indian Ocean, the coasts of Senegal, and of 
America. 
This shell is very remarkable for its- globular form, and for 
the upper whirls, which sink within each other, with a pretty 
distinct suture. It has some resemblance to the Cassis canali- 
culata of Bruguiére. 
