Marcu, 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. 
a Loricaria tuyrensis sp. nov. 
3 Type No. 7583, F. M. N. H.; ident 350 mm.; Rio Tuyra, Boca de 
_ Cupe, Panama. 
s Head 4.4 to 4.7; depth 9.5 to 11.5; D.I, 7 or 8; A. I, 5; scutes 20 or 
= 2% + 10 to 12. 
a 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 
papilla, 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 1.0 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. 
a 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. 
a 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 
