ANNOTATED LIST OF THE SPECIES 99 
caudal peduncle 10-11 in the length; length of head in the type 30.5 mm.; dorsal 
spine 21 mm.; pectoral spine 23 mm.; dorsal spine roughened near the tip in front, 
its posterior margin smooth; basal two thirds of pectoral spine with about twelve 
small hooks and a ridge of coalesced hooks (nine hooks in the paratype and no 
ridge); humeral process extending not quite to middle of pectoral spine in the type, 
beyond middle in the paratype. Caudal deeply forked, upper lobe much the longer, 
about 3.5 in the length. 
Type with obscure lateral band; the paratype plain ashy. 
Pearson’s Bolivian specimens have the upper caudal lobe not much produced; 
maxillary barbels reaching beyond tip of ventrals; numerous minute teeth on the 
pectoral spine. The specimens collected in forest pools are of dark color, and the 
maxillary barbels reaching to or slightly beyond the anal. 
For the Inca Rocca, the first of the great Incas, proclaimed sovereign by the 
people, under direction of his mother, Siuyacu, the ladies of the court having an 
active part in shaping history, then as always. 
33. PIMELODELLA LATERISTRIGA (Miller and Troschel) 
Pimelodus lateristriqus Miller and Troschel, 1849, Horae Ichth., III, 3. 
Pimelodas lateristriga Giinther, 1864, Cat. Fish. Brit. Mus., V, 118. 
Pimelodella lateristriga Eigenmann and Eigenmann, 1888, Proc. Cal. Acad. Sci., (2), I, 133, Brazil; 
Eigenmann and Eigenmann, 1890, Occ. Papers. Cal. Acad. Sci., I, 156; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 389; 
Eigenmann, 1917, Mem. Carnegie Mus., VII, 245. 
Atlantic drainage Maranon and Parahyba northward 
15867, 2, 121 and 135 mm., Puerto Melendez, Alto Maranon, Allen, October, 1920. 
34. PIMELODELLA BUCKLEY! (Boulenger) 
Pimelodus lateristriga Cope, non Miiller and Troschel, 1872, Proc. Acad. Nat. Sci. Phila., 270, Rio 
Ambyiacu, two, 160 mm. 
Pimelodus buckleyi Boulenger, 1887, Proc. Zool. Soc. London, 275, pl. xx, fig. 1, two, 150 mm., 
Canelos. 
Pimelodella buckleyi Eigenmann and EKigenmann, 1888, Proc. Cal. Acad. Sci., (2), I, 133, Brazil; 
Eigenmann and Eigenmann, 1890, Occ. Papers Cal. Acad. Sci., I, 158; 
Higenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 389; 
Eigenmann, 1917, Mem. Carnegie Mus., VII, 240. 
Amazon and tributaries, Peru to Rio Parahyba 
15860, 7, 67-129 mm., Rio Ucayali, Contamana, Allen, August, 1920. 
15861, 1, 92 mm., creek, Yurimaguas, Allen, November, 1920. 
35. PIMELODELLA HARTWELLI Fowler 
Pimelodella hartwelli Fowler, 1939 (1940), Proc. Acad. Nat. Sei. Phila., XCI, 222, figs. 4-7. 
One specimen, the type, Contamana. 
