274 tJYMNODONTES. 



ample shows the black dorsal cross bands, agreeing perfectly 

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



h, i. Se^ral very young examples, 1-2 inches long. Open ocean. 

 — Coloration as in spec. g. 



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

 tude 22° 53' W. 



3. Tetrodon laevigatus. 



Orbis lagocephalus, Grew, Mus. Reff. Soc. 1681, p. 108, tab. 7 (lower 



figure) ; Wilhighby, p. 144, tab. J. 2. 

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

 Tetrodon Ifevigatus, L. Syst. Nat. i. p. 411 ; Lacep. i. pp. 476, 497, 



500; Bl. Schn. p. 506; Dekay, Nezu York Faun. iUh. p. 329, 



pl. 5G. fig. 182 ; Storer, Mem. Am. Soc. viii. p. 418 (pi. 34. fig. 1) ; 



Poey, Repert. Fis.-tiat. Cub. 1808, p. 431. 

 lagocephalus, (not L.) Bl. Aitsl. Fisch. i. p. 126, taf. 140; Lac^p. 



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

 Tarabosil, Parra, p. 37, lam. 19. 

 ? Tetrodon curvus, Mitch. Lit. 8f Phil. Travis. New York, i. p. 472 



(young). 

 Tetrodon raathematicus, Mitch. I. c. p. 474. pl. 6. fig. 6 ; Storer, Bost. 



Jotirn. Nat. Hist. iv. p. 183. 

 pachycephalus, Ranzani, Nov. Comm. Ac. Sc. Inst. Bonon. iv. 



1840, p. 73, pl. 10. fig. 2. 

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

 Oastrophysus laevigatus, Bleek. Natuurk. Verh, Holl. Maatsch. Wet. 



Haarlem, 1863, xviii. p. 22, pl. 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 gUl-opening from the dorsal fin. Caudal fin forked in old ex- 

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

 silverjs abdomen white. 



Atlantic coasts of tropical America ; Japan. 



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



h. Half-grown. Bahia. From Dr. Wucherer's CoUection. 



c. Adult. 



d-e. Adult : stuffed. Old Collection. 



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



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

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

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



4. Tetrodon lunaris. 



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

 pl. 122. fig. 1 ; Riipp. N. W. Fisch. p. 59 ; Cant. Mai. Fish. p. 378 ; 

 Bleek. Verh. Bat. Gcn.Ti.xiv. Bhotk. p. 12, md Atl. Ichth. Gymnod. 

 p. 63, pl: 1. fig. 2 ; Dftv/, Fish. Malahm; p. 255. 



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



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



leiopleura, Gray, Ind. Zool. 



PhysogastQr lunaris, "Mi^. A' handl. Ak. Wiss. Berl. 1839, p. 252. 



