ANNOTATED LIST OF THE SPECIES 297 
the attachment of a hook, a snout perhaps all the tougher for the lack of teeth; they 
seem unusually able to withstand handling out of water. 
397a. CURIMATA HYPOSTOMA HASTATA Allen, subsp. nov. 
17859, 1, 133 mm., Rio Pichis, Puerto Bermudez, Allen, July, 1920. 
Although separated from the preceding (or united to the preceding, as you 
may prefer) by some 600 to 800 miles of water, it is very close to C. hypostoma, 
somewhat stouter. More specimens would have warranted making it a new 
species. In all respects except the greater robustness and differences in color it 
Fia. 32. Nests of Loricariid fishes in the clay banks of the Rio Huallaga near Yurimaguas. 
exactly resembles our specimens of C. hypostoma; leucisca-like in form, color, and 
striae of the scales; hypostoma-like in the position of the mouth; and suggesting 
C. elegans and gilberti of southeastern Brazil in the javelin of black along the sides, 
the head of the javelin black on the caudal peduncle, its point bearing on the middle 
caudal rays, the handle of the javelin a fainter black, mostly above the lateral line. 
Seales 7—49—6, regular, nearly uniform, naked, rayed, crenulate, firmly 
embedded. Dorsal and ventral curvature slight and about equal; fishes elongate 
in form, the outline slightly interrupted by the bases of the fins; length of the caudal 
peduncle 1.5 in its own depth; moderately compressed; only faintly keeled. 
Head 4; depth 3.4 in the length; eye equals snout, 3.6 in the head. 
