522 Storer on the 
The Pectorals arise ona line with the dorsal spine. 
The Anal fin formed like the dorsal, arises on a 
line with, and terminates just back of that fin. 
The Caudal fin, is dark brown; the upper and 
lower rays the shortest ; the middle are the longest ; 
and to the former, in length, as 6 to 1. 
The fin rays are: D. 34; P. 10; A. 34; C. 12. 
OsrnRaciow. Lin. 
Generic characters. Head and body covered with 
regular bony plates soldered in such a manner as to 
form a sort of inflexible shield, which invests them 
so that the only moveable parts are the tail, fins; 
mouth, and a sort of small lip with which the edge 
of their gills is furnished, all passing through holes 
in this coat of mail. Jaws armed with ten or twelve 
conical teeth. A single dorsal and ventral fin. 
O. Yalei. Nobis. Yale’s Trunk Fish. 
Journal of the Boston Soc. of Nat. Hist. vol. i. p. 353, et fig. 
The only specimen which has been found of this 
species upon our coast, was discovered alive by Dr. 
Yale in 1833, among the sea-weed on the beach at 
Martha’s Vineyard, and presented by him to the 
Boston Society, of Natural History. In 1836, I read 
a description of this fish to the Society abovemen- 
tioned, associating with it the name of the gentleman 
by whom it was discovered, as a deserved respect 
s” due him by the Society, for his frequent donations 
. to their cabinet, and his zeal for natural science. 
