DEC. 28, 1916. FISHES OF PANAMA MEEK AND HILDEBRAND. 261 



over base of ventrals; the rays of dorsal reaching equidistant when fin 

 is deflexed, the longest rays slightly shorter than head; caudal fin with 

 concave margin, the upper lobe the longer, upper spine produced in a 

 filament; anal fin small, the anterior rays not reaching beyond the 

 posterior when deflexed, the longest ray equal to width of head; ventral 

 fins reaching origin of anal; pectoral fins slightly longer than the ventrals, 

 reaching a little past the base of the latter, 1.3 to 1.9 in head. 



Color grayish; pale below; back with 5 or 6 dark cross-bars. Fins 

 with dark spots on the rays. 



Of this species there are 4 specimens, ranging in length from 50 to 

 80 mm. All are from the mouth of the Rio Capeti, tributary of the 

 Rio Tuyra. 



We have for comparison a paratype of this species, with which our 

 specimens agree perfectly. 



This species differs from L. capetensis in the smaller and more delicate 

 scutes on abdomen, and in the shorter and differently shaped dorsal and 

 anal fins. 



12. Genus Oxyloricaria Bleeker. 



Oxyloricaria Bleeker, Nederl. Tijdschr. Dierk., I, 1863, 81 (type Lori- 

 cat f ia barbata Kner). 

 This genus differs from Loricaria in the more numerous and setif onn 



teeth and in the absence of the orbital notch. 



KEY TO THE SPECIES. 



a. Snout somewhat produced, pointed, its upper profile concave; 



lateral scutes 33 to 35; caudal fin with a dark longitudinal bar 



on each lobe. panamensis, p. 261. 



aa. Snout broadly obtuse, its upper profile convex; lateral scutes 



30 or 31 ; no dark bars on caudal fin. citurensis, p. 262. 



17. Oxyloricaria panamensis (Eigenmann & Eigenmann). 

 Loricaria rostrata (non Spix) Steindachner, Denkschr. K. Ak. Wiss- 



Wien, XLI, 1879, 165 (Rio Mamoni, Panama). 

 Loricaria panamensis Eigenmann & Eigenmann, Proc. Cal. Ac. Sci., 



2nd. Ser., II, 1889, 34, and Occ. Pap. Cal. Ac. Sci., I, 1890, 365 



(Panama). 

 Loricaria aurea Steindachner, Anz. K. Ak. Wiss. Wien., 1900, 206, and 



Denkschr. K. Ak. Wiss. Wien, LXXII, 1902, 138, PI. V, fig. i (Rio 



Magdalena). 

 Loricaria frenata Boulenger, Ann. & Mag. Nat. Hist., Ser. 7, IX, 1902, 



69 (N. W. Ecuador). 



