Dec. 28, 1916. Fishes of Panama — Meek and Hildebrand. 259 



anteriorly by 2 slightly enlarged plates; a cross row of small plates 

 varying from a few to several in number between pectorals; 18 or 19 

 scutes from anal to base of caudal; origin of dorsal over or slightly in 

 advance of ventrals, the anterior rays of dorsal reaching past tips of the 

 posterior rays when deflexed, not much shorter than head; caudal fin 

 truncate, the upper rays the longest; the upper spine with a filament; 

 anal fin small, the spine a little shorter than greatest width of head; 

 ventral fin reaching a little past origin of anal, the spine somewhat 

 produced, fleshy at tip; pectoral fins of about the same length as the 

 ventrals, reaching nearly or quite to the base of the latter, 1.25 to 1.7 

 in head. 



Color grayish above, pale below; upper surface sprinkled with small 

 brownish dots and lines; 2 or 3 series of dusky spots sometimes present 

 on the ventral surface of caudal peduncle; fin rays with dark spots, these 

 most numerous on pectorals where they are not only present on the 

 rays but on the interradial membranes also. 



There are 6 specimens, ranging from 235 to 265 mm. in length, in the 

 present collection. All are from the lower Rio Tuyra Basin. Although 

 the type of this species was taken in the Rio Mamoni, no specimens were 

 secured there by us. 



15. Loricaria capetensis Meek & Hildebrand. 



Loricaria capetensis Meek & Hildebrand, Field Mus. Nat. Hist. Pub., 



Zool. Ser., X, 19 13, 80 (Rio Capeti, tributary Rio Tuyra, Panama). 



Head 4.8 to 4.9; depth 12 to 12,5; D. I, 7; A. I, 5; lateral scutes 30 or 



31- 



Body depressed throughout; head of moderate width; snout rather 

 acute, its margin granulate, 1.8 to 1.9 in head; interorbital 5.6; mouth 

 narrow; teeth bifid, the inner cusp much longer than the outer, each 

 jaw with about 8 teeth on each side; the lips papillose, each with rather 

 short fringes or tentacles, the longest not nearly reaching gill-opening; 

 temporal and occipital plates and predorsal scutes striate and carinate; 

 sides anteriorly with 3 keels, the third or upper one present on 11 or 12 

 s.cutes, the other 2 coming very close together, but not completely 

 united on the igth to 22nd scute; ventral surface of head naked; abdomen 

 with a lateral row of plates, bordered on each side by a naked area, the 

 median line with 2 or 3 rows of small granular plates, enlarged between 

 the ventrals; a single enlarged plate in advance of vent; 17 or 18 scutes 

 from anal to base of caudal; origin of dorsal slightly behind base of 

 ventrals; the anterior rays reaching past the posterior when the fin is 

 deflexed, the longest ray notably longer than head; caudal fin truncate, 

 the upper spine produced into a filament, about equal to length of body 



