FISHES OF THE FAMILY LORICARIID. 301 
8. FOXYLORICARIA BARBATA. 
Loricaria barbata Kner, Denkschr. Ak. Wien, vi. 1853, p. 87, pl. v.; Giinth. Cat. Fishes, v. 
p. 257 (1864). 
Length of head 43 times in the total length. Breadth of head about 14 times in 
its length, diameter of eye about 84 times, interorbital width nearly 4 times, length of 
snout about 13 times. Sides of the snout, in the male, with bristles. About 33 scutes 
in a longitudinal series, 154+18. Lateral keels sharp, serrated, the lower distinct on 
the first seute. Lower surface of head covered with small plates except an area below 
and behind the lower lip; abdomen with 5 series of plates between the lateral series ; 
an anal plate bordered anteriorly by 3. Length of first dorsal ray about 45 times in 
the total length. Pectoral spine extending to middle of ventral. Caudal emarginate. 
Breadth of body at level of last anal ray about 4 times in the distance from the latter 
to the caudal. Fins with dark spots or bars. 
The type, from the Rio Cujaba, is about 280 mm. in total length. 
9. OXYLORICARIA PANAMENSIS. 
Loricaria rostrata (non Spix) Steind. Denkschr. Ak. Wien, xli. 1879, p. 165. 
Loricaria panamensis Kigenm. & Higenm. Proc. Cal. Ac. (2) ii. 1889, p. 34, and Occ. Pap. Cal. Ac. 
i. 1890, p. 365. 
Loricaria aurea Steind. Anz. Ak. Wien, 1900, p. 206, and Denkschr. Ak. Wien, Ixxii. 1992, p. 138, 
pl. v. fig. 1. 
Length of head 43-5 times in the total length. Breadth of head 13-14 times in 
its length, diameter of eye 73-10 times, interorbital width 33-53 times, length of 
snout 13-13 times. Snout with a projecting rostrum; supraorbital edges not raised. 
32-83 scutes in a longitudinal series, 15-15+17-19; lateral keels weak, obsolete 
anteriorly, remaining separate throughout or united posteriorly. Lower surface of 
head covered with small plates except a naked area below and behind the lower lip ; 
abdomen with 3 series of plates between the lateral series; an anal plate, bordered 
anteriorly by 3, these 3 again by 4. Dorsal elevated, its height 5-4 times in the total 
length. Pectoral spine extending nearly to middle of ventral or beyond, to anal 
opening (young) or to origin of anal fin (adult). Caudal emarginate, the outer rays 
much produced. Breadth of body at level of last anal ray 63-7} times in the distance 
from the latter to the caudai. Olivaceous; a blackish area in front of each eye; 
dorsal with dark spots on the rays, the first and second interradial membranes blackish ; 
caudal dark at the base and with a dark longitudinal stripe on each lobe. 
Rio Magdalena, Panama. 
After examination of the type of Z. panamensis, which is 98 mm. in total length, 
IT have no doubt of the identity of Z. awrea, recently described from a specimen of 
169 mm, from the R. Magdalena, with this species. Still larger examples (250 mm.} 
