FEB., 1909. NEW FISHES FROM TROPICAL AMERICA MEEK. 211 



2.8 to 2.9 in head; eye 3.5 to 3.7; snout 2.2 to 2.4; fold of the lower 

 lip interrupted; preorbital deep, 3.6 to 3.8 in head; postorbital 2.4 

 to 2.5; interorbital strongly convex, 2.5 to 2.7 in head; eye to lower 

 preopercular margin 2.3 to 2.5; origin of dorsal fin to tip of siloat 

 2.5 to 2.6 in body, its spines, except first, 3 or 4, subequ&J, i he length 

 of the last spine 2.3 to 2.4 in head; last anal spine 2.5 to, 2. 5 in hoad; 

 pectorals not reaching vent, their length 1.2 to i.3.iiA head; ; -entral;5 

 1.2 or 1.3 ; least depth of caudal peduncle 2.2 to 2.3 in head-; its Ufrgtl} 



1.9 to 2.0; gill-rakers short 3+6; caudal fin rounded, its 'middle ray 

 slightly shortened. 



Color light grayish olive; a dark lateral band broken more or 

 less into 6 or 7 irregular blotches or bars; a dark streak from upper 

 margin of eye across forehead; a similar streak or band on forehead 

 from eye downward and forward; vertical fins plain or with indis- 

 tinct dots. 



This fish resembles Cichlasoma underwoodi Regan, also described 

 from Costa Rica. It, however, differs from that species in the inter- 

 rupted fold of the lower lip, the fewer gill-rakers, in having a blunter 

 snout, and in the normal position of the ventral fins. 



Turrabales, Costa Rica (i), 147 mm.; Turrubares, Costa Rica (i), 

 128 mm. Collected by Dr. A. Alfaro. 



