123 FISHES OF SINALOA. 495 



slender, some filamentous; caudal lanceolate; teeth sharp, 

 rather small, the outer larger; lower jaw thin and flat, its 

 acutish tip elevated. 



Olive, speckled and marbled; side with five oblong black 

 spots, the smallest at base of caudal; a black blotch on 

 opercle; dark cross-bars under soft dorsal; head much 

 mottled; dorsal speckled; caudal with ten zigzag cross- 

 bars of dark specks; pectoral faintly barred; anal and 

 ventral plain; a dark curved streak about yellowish base 

 of pectoral; lower lip dusky; a blackish cross-blotch above 

 gill opening. 



In the adult, called Gobius longicauda, the caudal is 

 much longer, but there is no other difference of impor- 

 tance. 



205. Gobius manglicola Jordan & Starks n. sp. 



One specimen found in the mud of the Astillero among 

 the roots of mangrove bushes ( Rhizofhora mangle). 



Head 4^; depth $}<; D. VI-12; A. 12; scales about 

 35, not to be exactly counted; caudal lanceolate, 2% in 

 body; pectoral about equal to head; dorsal spine slender, 

 not filamentous, 1^3 in head; eyes large, close together, 

 the range partly vertical, the narrow interorbital deeply 

 furrow r ed; no flaps on shoulder girdle; scales moderate, 

 ctenoid anteriorly, becoming smooth behind; median keel 

 on head slight; head naked. 



Body long, compressed, the head depressed, the cheeks 

 tumid; snout bluntly truncate; mouth large, the maxil- 

 lary reaching the middle of eve, not produced backward, 

 truncated behind, somewhat oblique, the lower jaw a lit- 

 tle the longer; lower jaw flat; teeth strong, the outer in 

 both jaws enlarged; cranium without median crest, ab- 

 ruptly widened behind eyes. 



Color light olive mottled with darker; six oblong 

 blotches of blackish on sides as in Gobius bo/eosoma, the 



