TETHAODON. FISHES. 393 



edge of each ; nostrils with double fleshy tentaculi ; skin 

 armed in every part with thick pointed spines ; body capable 

 of inflation like a globe. 



D. atinga, Lin. Body elongated, spines close together ; caudal fin 

 rounded ; back broad, round, and blackish ; belly white, spotted 

 with black, and edged with brown ; dorsal and anal tins opposite. 

 15 to 18 inches long. Inhabits Indian Seas.~#/oc, pi. 125. 



Gen. 2. TETRAODON, Lin. 



Jaws divided in the middle by a suture in such a manner as to 

 present the appearance of four teeth, two above and two be- 

 low ; skin furnished with small spines ; body capable of in- 

 flation. 



T. lineatus, (T.physa, Geoff.) Back and sides striped longitudi- 

 nally with brown and blackish ; spines small, numerous. 10 to 

 12 inches long. Inhabits the Nile. Cuv. Reg, An. ii. 147 

 At the period of the inundation of the Nile many of this species are thrown up- 

 on land, and serve for sport to the children. 



T. stellatus, Donov. (T. lagocephalus, Penn.) Globe Tetraodon. 

 Body oblong, rich blue on the back ; tail and tins brown ; sides and 

 belly white, shagreened or wrinkled, with numerous small sharp 

 spines attached at the base by four rays. 19 inches long. Eu- 

 ropean and American seas. B. Penn. Brit. Zool. iii. pi. 23. 



T. testudineus, Bloch. Body ferruginous brown, with blue spots 

 above ; bluish, with longitudinal brown bands beneath. 2 feet 

 long. Inhabits Indian seas Bloch, pi. 139. 



T. electricus, Paterson. Body brown above, yellow on the sides, 

 sea-green beneath, and varied with red, green, and white spots. 

 7 or 8 inches long. Inhabits Indian and American seas. PhiL 

 Trans. Ixxvi. pi. 13. 



Gen. 3. CEPHALUS, Shaw. Orthagoriscus, Schn. 

 Jaws undivided ; body short, compressed, terminating abruptly, 

 and without spines, not capable of inflation ; tail short, and 

 very high vertically ; dorsal and anal fins high and pointed, 

 uniting with the caudal fin ; no swimming-bladder. 



This genus is distinguished from all others by the singular shortness of the body, 

 which seems as if it were cut off abruptly, the posterior parts wanting, and rather 

 resembling the head of a large fish than a complete animal. 



C. brevis, Shaw. (T.mola,Lin.) Short Sun Fish. Body brown, 

 with a silvery tinge on the sides and abdomen ; skin rough ; 

 pectoral fins small, rounded, and placed horizontally. 8 to 10 

 feet long. Inhabits European seas. B Shaw, v. pi. 175. 



C. oblongus, Shaw. Oblong Sun Fish. Back dusky, with some 

 variegations ; abdomen silvery ; a few dusky streaks pointing 

 downwards between the eyes and pectoral fins. Inhabits Eu- 

 ropean Seas. H.Shan>, v. pi. 176. 



