274 OYMNODONTES. 



ample shows the black dorsal cross bands, agreeing perfectly 

 with the figure given in Seba's ' Thesaurus.' 



h, i. Several very young examples, 1-2 inches long. Open ocean. 

 — Coloration as in spec. g. 



I: Several very young examples, obtained in latitude 20° N., longi- 

 tude 22° 53' W. 



3. Tetrodon Isevigatus. 



Orbis lagocephalus, G-'rew, 3Iiis. lie//. Soc. 1081, p. 108, tab. 7 {lower 



figure) ; Willughhy, p. 144, tab. J. '2. 

 Ostracion no. 13, Artedi, Genera, p. 58. 

 Tetrodon Li3vigatus, L. Syst. Nat. i. p. 411 ; Lacep. i. pp. 47G, 497, 



500 ; Bl. Sc/in. p. 506 ; Dckay, Neiv York Fcum. Fiih. p. 329, 



pi. 56. fig. 182 ; Storer, Mem. Am. Soc. viii. p. 418 (pi. 34. fig. 1) ; 



Poey, Repert. Fis.-nat. Cub. 1868, p. 431. 

 lagocephalus, (not L.) Bl. Ausl. Fisch. i. p. 126, taf. 140 ; Lacep. 



i. pp. 475, 495 ; Bl. Schn. p. 503. 

 Tambosil, Parra, p. 37, lam. 19. 

 ? Tetrodon curvus, Mitch. Lit. ^- Phil. Trans. New York, i. p. 472 



(young). 

 Tetrodon mathematicus, Mitch. I. c. p. 474, pi. 6. fig. 6 ; Storer, Bost. 



Journ. Nat. Hist. iv. p. 183. 

 pachvceplialus, lianzani, Nov. Comm. Ac. Sc. List. Bonon. iv. 



1840, p."73, pi. 10. fig. 2. 

 Ilolocanthus melanothos, Gronov. Syst. ed. Gray. p. 24, 

 Gastrophvsiis lasvigatus, Bleek. Natmcrk. Verh, HoU. Maatsch. Wet. 



Haarlem, 1863, xviii. p. 22, pi. 2. 



Body entirely naked above and on the sides ; abdomen with small 

 three-rooted spines. The length of the head equal to the distance 

 of the gill-opening from the dorsal fin. Caudal fin forked in old ex- 

 amples, subtruncate in half-grown. Uniform greenish above, sides 

 silvery, abdomen white. 



Atlantic coasts of tropical America ; Japan. 



a. Adult. Gulf of Mexico. From the Haslar Collection. 



b. Half-grown. Bahia. From Dr. Wucherer's Collection. 



c. Adult. 



d-e. Adult : stuffed. Old Collection. 



/. Adult : skin. From Gronow's Collection. 



Tetraodon inermis, Schleg. Faun. Japon. Poiss. p. 278, pi. 122. 

 fig. 2, I regard as a variety of T. Irvvigatus ; it appears to differ only 

 in the size of the abdominal spines, which are reduced to granules. 



4. Tetrodon Imiaris. 



Tetrodon lunaris, Bl. Schn. p. 505 ; Schler/. Faun. Japon. Poiss. p. 277, 

 pi. 122. fig. 1 ; Biipp. N. W. Fisch. p. 69 ; Cant. 3Ial. Fish. p. 378 ; 

 Bleek. Verh. Bat. Gen. xxiv. Blnotk. p. 12, and All. Lchth. Gymnud. 

 p. 63, pi. 1. fig. 2 ; Day, Fi.sh. Malabar, p. 255. 



Russell, 1. p. 20. no. 29. 



Tetrodon tepa, Ifam. Buch. pp. 10, 362. 



leiopleura, Gray, Lnrl. Zool. 



Physogaster lunaris, Mull. Abhandl. Ak. Wiss. Berl. 1839, p. 252. 



