FISHES. 
321 
covered with strong short broad-based spines. Ten inches long. 
Inhabits the Tropical seas. 
Genus 2. — T E T R A O I) O N. — •Linnceus. 
Generic Character. —Jaws divided in the middle by a suture, 
formed like four teeth, two above, and two below; skin pro¬ 
vided with small spines; body capable of inflation. 
Tetraodon lineatus. — The Lineated Tetraodon. 
Plate LXXVI. fig. 2. 
Back and sides longitudinally striped with black and brown ; 
abdomen gray; covered with small spines. Twelve inches long. 
Inhabits the Mediterranean and American seas. 
Genus 3.—CEPH ALUS. — Shaw. 
Generic Character. —Jaws entire; body extremely short, 
compressed, and abruptly truncated, having the appearance of 
being all head; skin spineless ; incapable of inflation ; tail short, 
vertical, and high; dorsal and anal fins high and sub-acute, 
uniting with the caudal fin; devoid of a swimming bladder. 
Ceplialus brevis. — The Short Sun Fish. 
Plate LXXVI. fig. 3. 
Brown above; sides and abdomen reflecting a gold and silver 
metallic lustre. Ten feet long. Inhabits the European seas. 
TRIBE II.-SCLERODERMI. - Cuvier. 
Genus 4.—BALISTES.— Linnceus. 
Generic Character. —Each jaw furnished with eight teeth set 
in a single row; body compressed, and covered with hard rhom- 
boidal scales; first dorsal fin provided with three spines, the 
first the longest, and third greatly smaller and separate; extrem¬ 
ity of the pelvis projecting and covered with prickles. 
Balistes vetula. — The Old Wife File-Fish. 
Plate LXXVI. fig. 4. 
Yellow-olive above; paler beneath; body broad, thin, and 
rough. Two feet long. Inhabits the Indian and American 
seas. 
