DESCRIPTIONS OF NEW FISHES FROM PANAMA. 
BY S. E. MEEK AND S. F. HILDEBRAND, 
The following preliminary descriptions are of new fishes obtained 
by the authors during their first season’s work on the Biological Sur- 
vey of the Canal Zone, the ichthyological work of which is being con- 
ducted coéperatively 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 214; D. 9; A. 24; scales 38. 
Body compressed; mouth moderate, the maxillary reaching past 
front of orbit, its length 244 in head; eye 3; snout 4; suborbital 3; no 
teeth on maxillary; base of anal 34% in body; longest dorsal ray 33; 
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 33; depth 23; 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 
2% in head; eye 2% in head; snout 3%; suborbital 4 in head; dorsal 
fin pointed, its first rays 3% in body; base of anal 3%. 
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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