298 FISHES OF WESTERN SOUTH AMERICA 
€ 
398. CURIMATA ROBUSTULA Allen, sp. nov. 
15830, 8, 57-84 mm., creek, Yurimaguas, Allen, November, 1920. 
A form from near the foothills of the Andes nearly resembling C. elegans of 
the Atlantic seaboard streams, but unlike in markings and scalation, as seen below; 
form more robust. 
Head 3.6; depth in the length 2.9-3.2; eye in head 2.6, exceeding snout by width 
of iris or more, nearly equals interorbital; D. 11, equals head; A. 10; scale count 
5—34 to 36—5. 
Rather erect and short in form, dorsal and ventral contours subequal, dorsal 
nearly straight, ventral moderately convex; slightly concave over the eye; com- 
pressed; tends to form a double keel on each side of preventral region; mouth only 
slightly inferior, its width equal to eye. Dorsal fin equal to head, truncate; pec- 
toral fin rather long, nearly reaching ventral; ventral fin moderately long, reaching 
within two scales or less to the anus; anal rather long, sometimes reaching the 
caudal; caudal shallowly furcate. Scales few, large, uniform in size, slightly cre- 
nate, slightly rayed, naked, deciduous. 
Black area on lower part of middle dorsal rays, 5th to 8th; faint dark streak 
along lateral line, especially persistent on the caudal peduncle, and continuing to 
the end of the middle caudal rays. 
399. CURIMATA SIMULATA Eigenmann and EKigenmann 
Curimatus simulatus Eigenmann and Higenmann, 1889, Ann. N. Y. Acad. Sei., IV, 480; 
BHigenmann 1910, Rept. Princeton Univ. Exped. Patagonia, III, 422. 
Solimoées and Peruvian Andes 
15821, 2, 142 and 175 mm., Lago Sanango, Allen, November, 1920. 
Back greatly arched with steep anterior profile; preventral area flattened; 
postventral region prominently keeled; predorsal trenchant; scales more or less 
“cilate’; caudal naked. 
Profile somewhat depressed at the occiput; mouth inferior, snout pointed; eye 
equal to snout, 3.33-3.5 in the head, 1.66 in the interorbital space; head 3.2—-3.4; 
depth 2.33-2.6; D. 12-13; A. 12-14; scale formula 14—51 to 53—6 or 7. 
400. CURIMATA MURIELI Allen, sp. nov. 
Plate XIV, fig. 1 
17853, 1, 80 mm., Contamana, Rio Ucayali, August, 1920. 
Near Curimata simulata Eigenmann and Eigenmann, and in other respects 
similar to C. aspera Giinther; differs most conspicuously in the faint band of brown 
along the lateral line (suggesting C. hastata) and in the eight more or less distinct 
bands across the back, none but the first reaching the lateral line. Much elongated; 
head narrow; lateral line curved; fins shorter than above. 
Head 3 in the length; depth 3.2; eye 3 in the head and exceeding snout by the 
