March, 1913. Fishes from Panama — Meek and Hildebrand. 81 



confined mostly to the rays and forming cross bars, most numerous 

 and distinct on the caudal fin ; a broad dark bar under eye and a narrow- 

 one on anterior portion of interorbital. 

 Tuyra River basin. 



Loricaria tuyrensis sp. nov. 



Type No. 7583, F. M. N. H.; length 350 mm.; Rio Tuyra, Boca de 

 Cupe, Panama. 



Head 4.4 to 4.7; depth 9.5 to 11. 5; D. I, 7 or 8; A. I, 5; scutes 20 or 

 21 + 10 to 12. 



Body elongate, depressed; width of head 1.2 to 1.3 in its length; 

 depth of head 2.5; eye 6 to 8 in head; interorbital 4.6 to 4.8; snout 1.7 

 to 1.8; teeth 9 or 10 in upper jaw, 13 or 14 in the lower; lips with large 

 papillae, the upper fringed with a few blunt tentacles, the lower broad, 

 its surface with papillae and with fringed margin; top of head covered 

 with short spinules; temporal and occipital plates each with one keel; 

 predorsal plate without keel, the other plates between dorsal and head 

 each with a pair of keels; lateral keels separate throughout their length; 

 under surface of head naked, the plates on abdominal area extending 

 forward nearly to gill opening ; median abdominal plates in two series ; 

 the abdominal region entirely scaled; anal plate in contact with 3 or 

 4 plates, anal buckler usually with 12 to 14 plates; pectoral spines 

 reaching slightly beyond base of ventrals, length of first ray 1.2 to 1.3 

 in head; first dorsal ray .9 to i.o in head; width of body at anal 1.7 in 

 head, 3.9 to 4.1 in distance from anal to caudal; upper caudal ray 

 produced, its length in type 145 mm., more than half length of 

 caudal peduncle. 



Color dark brownish above, slightly lighter below; fins indistinctly 

 spotted, caudal irregularly barred, the spots or dark markings on fins 

 present on both the rays and the interradial membranes. 



Tuyra River basin. 



Oxyloricaria dariensis sp. nov. 



Type No. 7584, F. M. N. H; length 245 mm.; Rio Tuyra, Boca de 

 Cupe, Panama. 



Head 4.5 to 5.0; depth 9.0 to 10; D.I, 7 or 8; A. I, 5; scutes 15 or 16 + 

 17 or 18. 



Body elongate, depressed, the dorsal region somewhat elevated; 

 width of head 1.7 to 1.9 in its length; depth of head 2.5 to 2.7; eye 7 to 

 9 in head, without orbital notch; interorbital 3.2 to 3.6 in head; snout 

 depressed, somewhat attenuated, its length 1.6 to 1.7 in head; teeth 



