NEW SPECIES OF FISHES FROM PANAMA.* 
BY SETH E. MEEK AND SAMUEL F. HILDEBRAND. 
The fishes described in the following pages were collected by the 
authors in the fresh waters of Panama, while engaged in field work on 
the Biological Survey of the Canal Zone; the ichthyological work of 
which is being conducted codperatively by the Smithsonian Institution, 
the Field Museum of Natural History and the Bureau of Fisheries. 
A complete account of all the fishes collected during the past two years 
on this survey is in the course of preparation. 
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a Family SILURIDA. 
q a Felichthys amblops sp. nov. 
Type No. 7576, F. M. N. H.; length 111 mm.; Rio Tuyra, Marriganti, 
Panama. 
Head 3.8 to 4.2; depth 4.4 to 4.8; D. I, 5; A. 15 to 17. 
Body elongate, rather robust anteriorly; head short, bluntish; jaws 
sub-equal; width of head 1.0 to 1.2 in its length, its depth 1.2 to 1.5; 
width of mouth 1.7 to 2.0 in head; eye 4.0 to 4.3; interorbital 1.4 to 1.6; 
dorsal fin nearer tip of snout than adipose fin, its distance from tip of 
snout 2.8 to 3.0 in body; last dorsal ray to adipose fin 2.7 to 3.1; dorsal 
_ Spine rugose on anterior margin, smooth behind, its length 1.3 to 1.6 in 
head; pectoral spine strong, rough on outer margin, the inner with 
_ strong retrorse teeth, its tip nearly reaching ventrals, its length .9 to 
1.2 in head; ventrals 1.7 to 2.0 in head; caudal fin forked. 
Color dark above, lighter below, top of head marbled with black; 
a dark blotch on shoulder extending a short distance on side. 
Tuyra River basin. 
Megalonema punctatum sp. nov. 
Type No. 7577, F. M. N. H.; length 142 mm.; Rio Tuyra, Boca de 
_ Cupe, Panama. 
Head 3.80; depth 5.35; D. I, 6; A. ro. 
77 
* Issued March 3, 1913. 
