140 
pillar lip rounded, but the pillar not visible to the end. 
fare. 
B. Craneni. F. p. 292.—Subcylindrical, trans- 
lucent, horn-colored, the strong spiral striz im bands, 
slightly waved by indistinct lines of growth; aperture 
narrow, rendering the continuation of the pillar less in- 
visible; the latter is straight, a little reflected, forming 
a pillar cavity and is slightly waved where it joins the 
outer scarcely projecting lip; apex concave, without 
visible whorls. 0,60...0,40. Plymouth Sound. 
B. Srriata. Brug. Lam. 3.—Inst. ¢. 714. f. 72.— 
B. Amyepauus. D. p. 480.—B. Amputta. Mont.. p. 
206. ¢. 7. f. 1.—Mart. f. 202,4.—F.p.293.—Oblong- 
oval, smooth, glossy, opaque whitish mottled and veined 
with light chesnut; no external volution but in its place 
an umbilicus ; on the lower end of the pillar lip the 
shell is thickened and of an opaque white, but this does 
not extend up the shell; columella not visible to the 
end. %. Falmouth, in sand, rare. 
B. Zonata. Turton in Mag. Nat. H. 7. p. 352.— 
Oval, solid, opaque, with regular, rather broad alternate 
zones of white and fulvous or pale rufous brown, and 
transverse lines of very minute raised dots; apex 
