34 FISHES OF HAVANA, CUBA. 



SYNODONTIDiE. 



18. Synodus spixianus Poey. Lagnrto. 



19. Synodus interniedius Agassiz. 



20. Synodus myops Forster. 



{Trachi}tocephalna hrcviroslris Poey; probably based on an error in copying < 

 perhaps on a mutilated example.) 



CYPRINODONTID-ai. 



21. Gambusia punctata Poey. Guajacon. 

 Very abundant in the Eio Almendares. 



MURiENIDiE. 



22. Sidera ocellata Agassiz. 



23. Sidera nioringa Cixvier. Moreiia Phitlta. 



(fh/mnolhorax rosfratiis A'^asHiz, Poey. Gi/mvothorajr picturaiiis Poej. ? Gyt 

 nolhorax versipunctatns Poey.) 



This common species is extremely variable in coloration. In som 

 si)ecimens the dark markings almost entirely obscure the ground colo: 

 confining it to scattered reticulations, while in others the pale greenis 

 ground color predominates. There is also considerable variation in tL 

 length of the head, more than enough to account for the differences n< 

 ticed by Poey between his piciuratus and rostratus. There is also coi 

 siderable diflerence in the size of the eye, it varying from one-third t 

 cue-half the length of the snout in specimens of similar size. 



24. Sidera vicina Casteluau. 



One specimen, agreeing very closely wi'Ji Dr. Giinther's descriptioi 

 but not with any of Poey's. 



Color yellowish-brown, densely, closely, and irregularly miirbled, an 

 reticulated with dark brown or leather color, the surface being aboi 

 equally divided between this and the lighter ground color. Head, fiu! 

 and inside of mouth similarly marked. Anal with a conspicuous pal 

 edge. Angle of mouth with a brown spot. 1:^0 dark spot around gil 

 opening. 



Other characters essentially as described by Dr. Giiiither. Head, 2 

 in trunk. Cleft of mouth 2}^ in head. Eye, 2 in snout. 



Many of the species of tliis genus described by Poey must be merel 

 nominal, based on color variations, but none of them seems to corn 

 spond to this. 



CONGRIDiE. 



25. Conger conger L. Congrio. 



{Conger esculent us Poey.) 



ANGUILLID^. 



26. AnguiJla anguilla rostnta Lc Sueur. Angiiila. 



(Muraini cithaiui Poey.) 



My specimens agree i^recisely with others from the United States. 



