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DESCRIPTIONS OF NEW FISHES FROM PANAMA. 
-BY S. E. MEEK AND S. F. HILDEBRAND. 
■X 
The following preliminary descriptions are of new fishes obtained 
Cby the authors during their first season’s work on the Biological Sur- 
Savey of the Canal Zone, the ichthyological work of which is being con¬ 
ducted cooperatively by the Field Museum of Natural History and the 
Smithsonian Institution. 
Astyanax grandis sp. nov. 
Type No. 7571 , F. M. N. H.; length 260 mm.; Rio Juan Diaz, 
Panama. 
Head 4^; depth 2H2; D. 9; A. 24; scales 38. 
Body compressed; mouth moderate, the maxillary reaching past 
front of orbit, its length 2^ in head; eye 3; snout 4; suborbital 3; no 
teeth on maxillary; base of anal 3F2 in body; longest dorsal ray 3f; 
pectorals equal length of head; origin of dorsal nearer tip of snout than 
base of caudal. 
Color olivaceous, silvery; an indistinct silvery band; one or two 
black humeral spots; no caudal spot; fins all plain. 
Taken only in Pacific Coast streams. 
hemigrammus minutus sp. nov. 
Type No. 7572, F. M. N. H.; length 75 mm.; Rio Agua Clara, 
C. Z., Panama. 
Head 3-J; depth 2-f; D. 10; A. 22; scales 36. 
Body compressed, dorsal and ventral outlines about evenly convex; 
mouth small, the maxillary reaching to near middle of the eye, its length 
2pJ in head; eye 2j^ in head; snout 3^; suborbital 4 in head; dorsal 
fin pointed, its first rays 3R3 in body; base of anal 3>J. 
Color olivaceous, silvery; a faint silvery lateral band; one or two 
faint humeral spots; no caudal spot; fins all plain. 
Taken in a few streams in Canal Zone on the Atlantic side of the 
Isthmus. 
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