242 Slorer's Synopsis of the Fishes of North America. 



assume the appearance of bars, six to eight of which are noticeable. The whole surface of 

 the body, save the space between the dorsal and caudal fins, and the anal and caudal fins, 

 roughened by innumerable small spines. Caudal rounded. 



D. 6. P- 15- A. G, 7, 8. C 7. Length, 6 to 14 inches. 



Massachusetts, Stoker. Connecticut, Linsley, Ayres. New York, Mitchill, De- 



KAY. 



Tetraodon turgidus, Puffer, Mitchill, Trans. Lit. ant] Phil. Soc. of N. T., I. p. 473, pi. 6, fig. 5. 

 " " Swell-fish, Puffer, Stoker's Report, p. 169. 



,; c( Common Puffer. Dekat's Report, p. 327, pi. 55, fig. 173. 



" " Ayres, Boat. Journ. Nat. Hist., iv. p. 235. 



4. Tetraodon curvus, Mitchill. 



Back considerably arched and smooth. Dark brown above, variegated with faint bars 

 across ; beneath dull yellow, and roughened by short, sharp spines, disposed in quincunx. 

 A smooth brass-colored stripe or riband on the side from the head to the tail. General com- 

 plexion brassy. Tail tapering. 



D. 13. P. 16. A. 13. C. 15. Length, 2A inches. 



New York, Mitchill. 



Tetraodon curvus, Curved Tetraodon, Mitchill, Trans. Lit. and Phil Soc. of N. Y., l. p. 472. 

 " Curved Puffer (Mitchill), Dekay's Report, p. 323. 



GENUS III. ACANTHOSOMA, Dekay. 



Body globular, armed with spines, and susceptible of inflation. Dorsal, 

 caudal, and anal united. Teeth as in Diodon. 



1. Acanthosoma carinatum, Mitchill. 



Body vertically oval, small. Olive-brown above ; silvery on the sides and beneath. Spines 

 pointed, distant, and striated on their sides, with a dilated, rounded base. Eyes large, nos- 

 trils small, slightly before the eyes. 



D. (?). P. (?)• A. (.'). C. (?). Length, (?>. 



New York, Mitchill, Dekay. 



Diodon carinatus, Mitchill, Ann. Lye. of Nat. Hist, of New York. ii. p. 2G4, pi. 5, fig. I. 

 Acanthosoma carinatum, Small Globe-fish, Dekay's Report, p. 330, pi. 55, fig. 179. 



GENUS IV. ORTHAGORISCUS, Schn. 

 Jaws undivided, forming a cutting edge. Body compressed, without spines, 

 not susceptible of inflation, and whose tail is so short, and so high, vertically, 

 that they have the appearance of fishes from which the posterior part has 



