Dec. 28, 1916. Fishes of Panama — Meek and Hildebrand. 365 



forward to posterior margin of eye; scales large, ctenoid, present on 

 body and chest; dorsal fins 2, well separated; caudal fin rounded; ven- 

 tral fins separate. Camiverous. 



91. Hemieleotris latifasciatus (Meek & Hildebrand). 



Eleotris latifasciatus Meek & Hildebrand, Field Mus. Nat. Hist. Pub., 



Zool. Ser., X, 191 2, 68 (Rio Cardenas, Pacific slope, Panama); 



Meek, Field Mus. Nat. Hist. Pub., Zool. Ser., X, 1914, 131 (Jesus 



Maria, Costa Rica). 



Head 3.4 to 4; depth 3.6 to 4.75; D. VI-I, 9; A. I, 10; scales 35 

 to 39. 



Body compressed; head compressed, notably deeper than broad, not 

 flat above, profile straight or slightly concave over eyes; snout tapering, 

 3.8 to 4.7 in head; eye rather large, 3.5 to 4.15; interorbital 3.9 to 5.2; 

 mouth moderate, oblique; the lower jaw projecting; maxillary reaching 

 to or slightly past anterior margin of eye, 3.25 to 3.9 in head; teeth small, 

 pointed, in bands in the jaws; gill-rakers feebly developed; gill-mem- 

 branes attached to the isthmus, the openings extending forward to 

 under posterior margin of eye; scales large, ctenoid, 10 or 11 rows be- 

 tween base of second dorsal and base of anal ; origin of first dorsal about 

 midway between tip of snout and base of last ray of second dorsal, the 

 spines weak, the anterior ones somewhat produced, reaching opposite 

 the second or third ray of second dorsal; origin of second dorsal slightly 

 in advance of origin of anal, or about midway between middle of eye and 

 base of caudal; caudal fin with a few small scales at base, its margin 

 rounded; anal fin similar to second dorsal; ventral fins long, reaching 

 vent, inserted under base of pectorals; pectoral fins moderate, reaching 

 tips of ventrals, 1.04 to 1.25 in head. 



Color dark green above, paler below. Sides with a well defined, 

 black band, extending from tip of snout through eye to and on base of 

 caudal. Fins unmarked. 



This species is represented by 11 specimens, ranging from 27 to 80 

 mm. in length. This fish was taken in fresh water streams on the 

 Pacific slope from the Rio Chorrera to the Rio Bayano. 



The air bladder is thin, adnate to the back; intestine very short; 

 stomach without blind sacs. 



Habitat: Pacific slope rivers, from Costa Rica to Panama. 



56. Genus Awaous Steindachner. 



Awaous Steindachner, Verb. Mat. Phys. Naturw., i860, 289 (after 

 Cuvier & Valenciennes, les Awaous {ocularis, etc.)). 



