134 NEW-YORK FAUNA — MOLLUSCA. 
This species ranges from Cape Cod to the Gulf of Mexico. It is not very common on our 
shores. The first three species in the following list have only been obtained from the sto- 
machs of fishes; and as they may be also detected under the same circumstances along our 
coast, I have annexed figures taken from the book of Dr. Gould. 
(EXTRA-LIMITAL.) 
B. donovani. (Govtp, |. c. p. 304, fig. 208.) Shell large, ovate-conic, elevated and pointed. Whorls 
folded lengthwise, and marked with revolving lines; lowest whorl surrounded by a rounded keel ; 
aperture rounded; lip spreading. Color, soiled brown; throat livid. Length, 2-0; width, 1-0. 
B. ciliatum. (Ip. Ib. p. 307, fig. 209.) Shell ovate-conic, ventricose, thin. Whorls six or eight, 
sometimes folded at the suture, spirally striated: i hispid. Color, ash or clouded with 
brown. Length, 2:0; width, 1-3. 
B. rosaceum. (Ip. l.c. tes 195.) Shell small, acutely conic: whorls six, covered with spiral lines; 
aperture ovate, shorter than the spire; pillar arched and flattened; lip sharp, and without een 
within. 
B. acutum. (Say, Ac. Sc. Vol. 2, p. 234; Am. Conch. pl. 57, fig. 3.) Conic-acute, cancellate, so as 
to appear granulate; granules prominent, somewhat transverse, inequidistant. Spiral grooves six 
in number: spire longer than the body-whorl, slender, acute. Beak distinguished by a depression 
from the body-whorl, and slightly reflected; lip thickened, with elevated lines on the fauces, not 
attaining the margin. Color, whitish. Length, 0°5. Southern Coast. 
Oss. According to Mr. Couthouy, this is common in the stomachs of fishes captured on the 
coast of Massachusetts. 
B. unicinctum. (Ip. Ib. Vol. 5, p. 211; Am. Conch. pl. 57, fig. 1. Subovate, conical. Whorls 8, 
with 10 — 12 revolving lines and transverse undulations; apex acute; lip with ten revolving striz 
within; pillar-lip concave in the middle; two obsolete striae and adeeper one at the base. Color, 
yellowish white or ash grey: body-whorl with a brown band. Length, 0+9. South Carolina. 
B. ornatum. (Ip. Ib. Vol. 2, p. 229.) Subturbinated, with about two bands of arched scales. Whorls 
flattened above the shoulder, which has undulated scales resembling raised concave spines: aperture 
effuse; numerous revolving striae and grooves. Color, whitish ash, with rufous bands; throat 
varied with pale green and yellowish, the rufous bands being very distant. Length, 4+0; aperture, 
2-7. Southern coast. 
B. album. (In. Ib. Vol. 5, p. 212.) Ovate, longitudinally ribbed or undulated, and with spiral strie. 
Whorls seven, convex: 10 — 18 equidistant ribs on the body-whorl, and 17 - 20 striw ; suture deeply 
indented; lip with a larger rib than the others on the exterior, and striate within. Aperture sub- 
orbicular. Pillar-lip plate distinct, entire, but not expanded, with an indented line near the base, and 
a prominent one near the junction with the lip. Length, 0-4. Florida. 
