THE 
BROAD-FINNED ACANTHURUS. 
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Generic Character . 
Teeth rather short, generally sublobated. 
Moveable Spine on each side the base of the 
tail. 
Body broad, compressed. 
i 
Specific Character , G ? c . 
Whitish ACANTHURUS, with numerous trans¬ 
verse brown bands. 
The variegated ACANTHURUS. 
The new genus Acanthurus consists of such spe¬ 
cies of the Linnccan genus Chcvtodon as, in contra¬ 
diction to the principal character of that genus, 
have moderately broad and strong teeth, and are 
also furnished on each side the tail with a moveable 
spine. Among the species of Acanthurus one of 
the most remarkable is that represented on the pre¬ 
sent plate, which is a native of the American seas. 
It is figured in its natural size, and is also accom¬ 
panied by a magnified outline of some of the teeth. 
