Dec. 28,1916. Fisues or PANAMA— MEEK AND HILDEBRAND. 257 
mostly small, those between the ventral fins enlarged, a single large 
plate in advance of vent, bordered anteriorly by 3 enlarged scutes; 5 
to 7 rows of small plates across the belly; 16 or 17 scutes from anal to 
base of caudal; origin of dorsal over or slightly behind base of ventrals; 
dorsal spine usually about equal to width of head; margin of caudal fin 
concave, the upper rays the longest; the upper spine enlarged, bearing 
a filament which is usually lost in preserved specimens; anal fin small, 
its origin a little in advance of the tips of the deflexed dorsal rays; ventral 
fins reaching nearly or quite to origin of anal; pectoral fins of about the 
same length as the ventrals, not quite reaching the base of the latter, 
1.3 to 1.77 in head, with short bristles in adult male. 
Color brownish above, pale below; the back with 5 or 6 dark cross- 
bars, the first one at nape very indistinct or wanting, the second under 
base of dorsal. Fins yellowish green, with dark spots on the rays. 
There are numerous specimens in the present collection, ranging from 
50 to 185 mm. in length. Although this species has been recorded from 
both slopes of Panama, our extensive collecting produced none from the 
Pacific side. We are therefore inclined to doubt the validity of the 
Pacific slope records. Our specimens are all from the Rio Chagres and 
its tributaries. 
A common species, inhabiting shallow water with swift current, on 
either sandy or pebbly bottom. 
In the National Museum we have examined presumably the type 
of L. bransfordi Gill, which evidently is an adult male of this species. 
The adult male has a broad head and many short bristles on margin of 
snout and pectoral fins. 
Habitat: Panama. 
13. Loricaria filamentosa latiura Eigenmann & Vance. 
Loricaria filamentosa latiura Eigenmann & Vance, in Eigenmann, Indiana 
Univ. Studies, No. 16, 1912, 13 (Boca de Certegai, Colombia). 
Loricaria tuyrensis Meek & Hildebrand, Field Mus. Nat. Hist. Pub., 
Zoél. Ser., X, 1913, 81 (Rio Capeti, Panama). 
Head 4.1 to 4.6; depth 8.7 to 11.5; D. I, 7; A. I, 5; lateral scutes 30 or 
Body broad, strongly depressed throughout; caudal peduncle broad, 
its width at last anal ray 3.6 to 4 in its length; head low and broad, its 
width at gill-opening equal to or slightly less than head from that point 
to tip of snout; snout rather acute, granular to its margin, its length 
1.75 to 1.83 in head; orbital notch distinct; eye 7.2 to 9 in head; mouth 
small; teeth bifid; each jaw with from 8 to ro teeth on each side; lips 
papillose, fringed, barbel longer than eye, but failing quite notably 
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