512 REVIEW OF NORTH AMERICAN GOBIID^. 



55. Tyntlastes brevis. 



Ambh/opiiis brerif Giiuther, Proc. Zool. Soc, 1864, 151 (Pacific coast, Panama). 

 Giiuther, Fish. Central America, 441, 18lj9 (copied). 



Habitat. — Panama fauna. 



This species is known to us only from the description of Dr. Giiuther. 



56. Tyntlastes sagitta. 



Amhhjopus sagitta Giintlier, Proc. Zool. Soc, Loudon, 1862, 193 (California). 



Tyntlastes sayitla Jordan & Gilbert, Syn. Fish. North America, 639, 1883 



(copied) ; Jordan, Catalogue Fish. North America, 106, 1885 (name only). 



Habitat. — (Lower ?) California. 



This species is known only from the description of Dr. Gunther. 



20. GOBIOIDES. 



GOBioiDES Lac^pt^de, ii, 280, 1798 (broussoneti). 



Ognichodes Swainsou, Nat. Hist., Class'n Anim., ii, 1839, 183 and 278 (broussoneti). 



Type, Gobioides broussoneti Lacepede. 



This genus seems to be represented within the region covered by this 

 paper, bj' a single species, widely distributed in the tropical rivers. A 

 second species, Gobioides peruanus Steindachner, occurs in Peru. 



From Tcenioides {^Amblyopus) the geuus Gobioides seems to be dis- 

 tinguished by much smaller number of rays in its vertical tins. 



ANALYSIS OF THE SPECIES OF GOBIOIDES. 



a. Body elongate, head 5^ to 7 in length ; caudal 3J to 5 in length. Month oblique, 

 maxillary extending beyond eye. Teeth in bands; the outer series enlarged, 

 shorter aud closer set than in Gobioides peruanus. Eye small, 7 to 10 times in 

 head (half as large as in specimens of Gobioides peruanus of same size); inter- 

 orbital area 1 to If diameter of eye. Scales twice as large as in peruanus, 

 those of the anterior part of body not imbricated, much smaller than those of 

 posterior part. Violet bars extending; downward and forward on the upper half 

 of body ; sometimes a violet spot with a lighter or darker dot at the end of the 

 bars. Head marbled or spotted with dark violet or brown. Dorsals united, vii, 

 16. Anal i, 16 Broussoneti, 57. 



57. Gobioides broussoneti. 



Gobioides broussoneti Lacepede, ii, 280, 1798 (probably from Surinam) ; Cu- 

 vier, "RegneAuim. ni.,Poiss., plate 80, f 3, 1818" (not of Cuv. & Val. f 

 nor of Giiuther, whose species is the Pacific coast G. peruanus). 



Amblj/opus broussoneti Steindachner, Fisch-Arten um Guayaquil, 43, 1879 

 (Cuba, Amazou, Rio Janeiro). 



f Gobius brasiliensis Bloch & Schneider, Syst. Ichth., IbOl, 69 (on a drawing 

 by Prince Maurice). 



Gobius brasiliensis Cuv. & Val., Hist. Nat. Poiss., xii, 121, 1837 (Martinique). 



Gobius oblongus Bloch & Schneider, Syst. Ichth., 548, 1801 (based on Lac^p^dfe). 



Gobioides barreto Poey, Memorias de Cuba, 282, 1861 (Cuba) ; Poey, Synopsis 

 Pise. Cub., 394, 1868 (Cuba) ; Poey, Euum. Pise. Cub., 125, 1876 (Cuba). 



? Amhlyopus mexicanus O'Shaughnessy, "Ann. Mag. of Nat. Hist., ser. iv, vol. 

 XV, 1875, 147 (Mexico."). 



Habitat. — Fresh waters of the West Indies, Eastern Mexico and 

 South America. 



