ICHTHYOLOGY OF THE LESSER ANTILLES. 



483 



Gymnotiiorax rostratus. 



St. Martins, Dr. Rijgersma; St. Kitts, B. II. Lightfoot; Now Providence and Bahamas, II. C. Wood, M. D. 



Gymnotiiorax nigrocastaneus, Cope spec. nov. 



Dorsal fin commencing above a point three lengths of tho gape behind the end of the muzzle. Anterior part of 

 head much attenuated; mandible longer than muzzle; orbit horizontally oval, its diameter entering the muzzle twice, 

 and the intororbital width once. Posterior nostrils a long and open slit equal two-thirds the diameter of the eye, com- 

 mencing on a line with its anterior margin. Anterior nareal tubes behind the end of tho muzzle, short. A single 

 row often small teeth on the posterior part of the vomer ; then three widely spaced elongate teeth on the front, and 

 an arched series of six teeth on tho outer margin of tho naso-premaxillary. Two series of maxillo-palatines, the 

 outer smaller, mingled with still smaller, tho inner larger, and freely articulated three in front and four behind. 

 Mandibular teeth one-rowed, four spaced long ones in front, twenty-five shorter, closely set acute ones behind. 



Color dark chestnut, without markings. Top of head and borders of dorsal and caudal fins black. Length 

 Om.or, ; to branchial slit Om.077; to vent 0m.3G. 



St. Martins, Dr. R. E. van Rijgersma. 



This eel appears to be allied to the 0. infernalw and 0. erebus of Poey, but tho dorsal fin commences at a point 

 much posterior to that seen in those species, and thero are fewer teeth. I only know the latter from Dr. Pooy's 

 description. 



Isospondyli. 



ClupeidcB. 



Clupea macropiitiialma, Ranzani. Gunthcr Catal. Brit. Mus. VIII. 421. 

 New Providence, Dr. Wood. 



Clupea humeralis, Uuv. Val. XX. 393. Gtinth. Cat. B. M. VII. 432. 

 St. Croix, Capt. Davidson; St. Croix, Dr. Griffith. 



ELASMOBRANCIII. 

 Squall 



Ginolymostoma fulvum, Poey, Memorias, II. 342. Tab. 19. f. 15. Rcpcrtorio, 1808, 45 

 St. Martins, Dr. Rijgersma. 



Ginolymostoma cirratum, Gmolin. 8. punctatus, Parra. 8. argiis, Bancr. 

 St. Martins, Dr. Rijgersma. 



