HISTORY OF THE FISHES OF MASSACHUSETTS, 427 
drawing is made, I am indebted to John L. Tucker, Esq., formerly of the Tremont 
House of this city. 
Previous to the appearance of Dekay's Report, I supposed this species to be Dr. 
Mitchill’s M. broccus, and thus called it in the Proceedings of the Boston Society 
of Natural History, p. 84 (Sept. 1842). 
Dekay described it as a new species, under the specific name of setifer. As, 
however, this name had been préviously applied to another species of this genus 
by Bennett, in the Proceedings of the Zoólogical Society of London, Part I. p. 112, 
1830, I have felt compelled to substitute another. 
Massachusetts, Srorer. New York, Dekar. 
GENUS II. ALUTERES, Cov. 
An elongated body, covered with small and scarcely visible granules; a single 
spine in the first dorsal; the chief character is the pelvis, which is completely 
hidden under the skin, and is without that spinous projection observed in the 
other Balistes. 
ALUTERES CUSPicAUDA, Dekay. 
The Sharp-tailed File-fish. 
(PLATE XXXV. Fie. 2.) 
Balistes cuspicauda, Sharp-tailed File.fish, Myrcn., Amer. Month. Mag., 11. p. 326. 
Aluteres monoceros, Unicorn File-fish, (BLocH,) STORER, Report, p. 175. 
Aluteres p PNE Unicorn-fish, DE&AY, Report, p. 338, pl. 59, fig. 192. 
". .SronER, Mem. Amer. Acad., New Series, 11. p. 497. 
“ Di E “ e Synopsis, p. 245. 
Color. Coppery brown, with spots of pale bluish slate and of brassy yellow from 
the eyes to the tail and back halfway down the sides, arranged in rather regular 
series. Head, back, and throat of a dark olive-brown; lower part of sides and 
abdomen lighter. A pale greenish-blue tint on the cheeks and opercles. Irides 
brassy yellow. Dorsal spine dark. The last two thirds of the membrane of the 
caudal fin of a dusky brown, with the tips of the rays yellowish. The dorsal, pec- 
torals, and anal almost colorless. 
Description. Body elongated, compressed laterally. Its greatest height, which is 
just back of the dorsal spine, is equal to one third its entire length; its height 
at the base of the caudal rays is equal to about one fourteenth its length. Between 
the spine and the dorsal fin the back is nearly straight. The length of the head 
