NO. 1254. GYMNODONT FISHES OF JAPAN— JORDAN AND SNYDER. 251 
Orayracion Ihwahis Bleeker, Atlas Gymnodontes, p. 70, pi. ii, %. 1; pi. viii, 
fig. 1, Bali, Singapore, C'elebes, Amboyna. 
Tetrodon aerostaticus Jenyns, Voy. Beagle, p. 152, 1842, locality unknown. 
Head, 2^ in length; depth of caudal peduncle, 3^ in head; eye, 7i; 
snout. 2i; interorbital space, 2f ; dorsal rays, 10; anal rays, 10. 
Body short, broad, and very deep, the -belly greatly inflatable; 
caudal peduncle somewhat compressed, its length 3 in head. Eye 
small, ;H ill snout. Interorbital space broad, flat, the distance between 
eyes i times their diameter. Mouth small, its width about 2 times 
diameter of eye. Cutting edges of teeth concave, the suture without 
deep groove, and without ridges on either side. Nostrils with ])ifld 
tentacles; no apparent openings. Gill-opening almost as wide as base 
of pectoral. 
Lips, liases of flns, and caudal peduncle naked, the other parts of 
body covered with prominent spines; those of the upper parts and 
sides sharp, those of belly club-shaped. 
Fins all rounded, the membranes thin; dorsal and anal about 3 in 
head, caudal 2 in head. Pectoral rays 19. 
Color veiy dark brown; everywhere above with round, jet-black 
spots of different sizes, but all smaller than eye; belly with broad, 
black bands, more or less confluent and irregular, those anteriorly 
forming black reticulations around pale spots; vent black; base of pec- 
toral and anal with black spots, the caudal spotted, the other tins plain. 
East Indies; occasionally north to Japan; here described from a fine 
specimen taken at Houmoku, near Misaki, b}" Capt. Alan Owston. 
A smaller specimen, also from Misaki, shows no black spots abore and 
the liands below are narrower, widely separated, and parallel. In both 
the spines are black, both on the light and dark ground color. 
Dr. Giinther unites this, with several other of Bleeker's species, 
under the name of Tetrodon stellatus. The oldest name, however, 
certainly belonging to the present form is aerostaticus. Tetrodon 
stellatii.s is figured as having the rather high dorsal, like the caudal, 
well spotted with l)lack. It is, however, possible that Tetraodon 
stellatus is the adult of the same fish. 
{Aerostations, resting in air as a balloon.) 
21. TETRAODON HISPIDUS Linnaeus. 
? Tetraodon hispidus Linnaeus, Syst. Nat., 10th ed., 1758, p. 333, China, after 
Lagerstrom (probably this species, the spots not indicated in Lagerstrom's 
figure); Syst. Nat., 12th ed., 1766, p. 41L— ? Bloch, Ausl. Fische, I, about 
1786, p. 130, pi. cxLii, Coromandel. 
Tetrodon hispidus Gijnther, Cat. Fish., VIII, 1870, p. 297, Red Sea, Zanzibar, 
Ceylon, Mozambique, Port Natal. 
Tetrodon perspiciUarls RtJppELL, Atlas Fische, p. 63, Red Sea. 
Tetrodon implutus Jk^yss, Voyage Beagle, Fish., 1842, p. 152, Vanikoro. 
Crayracion implutus Bleeker, Atlas Gymnodontes, p. 71, pi. i, fig. 5, Sumatra, 
Cocos, Solor, Timor, Batjan, Amboyna, Banda. 
