GYMNODONTES. 
163 
2. Tetrodon cuteutia. 
Hab. Coasts and rivers. 4 inches. 
Body smooth. Green above, sides with a network 
of brownish lines. A large black spot edged with 
white is usually present on the side in advance of the 
dorsal tin. 
Dorsal 12. Pectoral 21. Anal 11. Caudal 8. 
3. Tetrodon fluviatilis. 
Hab. Coast and fresh waters. 6 or 7 inches. 
Char. Body apparently smooth, but the head, back, 
and belly are armed with small prickles, which can be 
retracted beneath the skin. 
Upper parts greenish with irregular roundish dark 
blotches, lower parts uniform whitish or dark 
coloured. 
Dorsal 16. Pectoral 17. Anal 14. Caudal 8. 
m 2 
