208 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. V. 



profile concave, the rest convex; snout rather pointed, the lower jaw 

 very strong and longer than the upper; mouth large, maxillary 2^ 

 in head; a few of the teeth very strong and canine-like; lower lip 

 without trace of a frenum; preorbital 4 in head; postorbital 2j\ in 

 head; diameter of eye 4^ in head; mandible 2 in head; eighth 

 dorsal spine 4 in head, the last 3 in head; middle rays of dorsal 

 and anal produced, nearly reaching tip of caudal fin in specimens 

 6 inches long ; about to middle of caudal in specimens 3 inches in 

 length; pectoral if in head; ventral with tips somewhat produced, 

 about reaching base of 4th anal, i^ in head; soft dorsal and anal, 

 scaly at the base; cheeks with 5 rows of scales; caudal fin rounded; 

 caudal peduncle 2^ in head, its length i^ in its depth. 



Color light brownish, side with a dark lateral band, more or less 

 broken into blotches on posterior half; about five indefinite dark 

 bars on posterior half of body, the region just below dorsal fin some- 

 what reticulated; a dark blotch on middle of base of caudal fin; two 

 indefinite bais across profile between nape and dorsal; a dark streak 

 at upper and one at lower margin of interorbital area; a dark streak 

 under eye forward to mouth; a few small dark dots on soft dorsal, 

 anal and caudal fins; a black blotch on middle of side above end of 

 pectoral and where the first definite bar on side crosses lateral band. 

 Length about 8 to 10 inches. 



Two specimens from Motzorongo have the cheeks reticulated 

 with blue lines and spots. The dorsal fin is very much produced on 

 a specimen 5 inches long from Obispo, tip of dorsal fin almost reach- 

 ing tip of caudal. In a few smaller specimens (2 to 4 inches) the 

 dorsal rays are little produced, scarcely reaching past base of anal; 

 individuals from El Hule are the lightest in color, those from Motzo- 

 rongo the darkest. Specimens less than 3 inches deep have a black 

 blotch on middle of side. 



195. Cichlasoma hedricki sp. nov. 



Type, No. 4673, F. C. M., 6.25 inches in length; Obispo, Vera 

 Cruz. 



Abundant in the large rivers of Mexico south of Vera Cruz. 

 (Vera Cruz; El Hule; Obispo; Perez.) 



Head 2^; depth 2^; D. xvn or xvm, 10; A. ix, 8; scales 

 7-34-12. Body rather elongate, compressed; profile nearly straight 

 to nape, from nape to first dorsal spine evenly convex; interorbital 

 convex, 2$ in head; lips thick, the lower with a frenum, not quite 

 reaching the margin of the lip; lower jaw slightly projecting; 

 outer series of teeth not much enlarged, far apart; preorbital 4 in 

 head; postorbital 2^ 6 in head; cheeks with 5 rows of scales; diameter 



