292 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
PIABUCINA ERYTHRINOIDES Valenciennes 
Piabucina erythrinoides VALENCIENNES, 7n Cuvier and Valenciennes, Histoire 
naturelle des poissons, vol. 22, p. 161, 1849 (rivers of Maracaibo, coast of 
‘‘Parija”’).—GUnTHER, Catalogue of the fishes in the British Museum, vol. 
5, p. 311 1864 (Maracaibo).—E1GENMANN and ErzcENnmaANNn, Proc. U. S. 
Nat. Mus., vol. 14, p. 52, 1891 (Maracaibo).—EicEnMann, Mem. Carnegie 
Mus., vol. 9, No. 1, p. 125, 1922 (Maracaibo). 
@ 
PIABUCINA PLEUROTAENIA Regan 
VOLADOKA 
Figure 36 
Prabucina pleurotaenia Reaan, Ann. Mag. Nat. Hist., ser. 7, vol. 12, p. 6238, 
1903 (Mérida, Venezuela). 
The following specimens were collected by Leonard P. Schultz 
during 1942 in the Maracaibo Basin of Venezuela: 
U.S.N.M. No. 121403, 2 specimens, 108 and 124 mm. in standard length, from 
the Rio San Juan near bridge, tributary to Rio Motatén, March 20. 
U.S.N.M. No. 121402, 1 specimen, 79 mm., from the Rfo San Pedro at bridge, 
Motatan system, March 20. 
U.S.N.M. No. 121404, 2 specimens, 86 and 96 mm., taken in the Rfo Barregas, 
tributary to Rfo Chama, just below Egido, Estado de Mérida, March 29. 
U.S.N.M. No. 121401, 1 specimen, 41 mm., from the Rio Cobre above mouth, 
tributary to Rfo Quinta, this tributary to Rio La Grita, Catatumbo system, 
March 31. 
U.S.N.M. No. 121400, 27 specimens, 34 to 162 mm., from the Rio Chama at 
Estanques, Estado de Mérida, Venezuela, April 3. 
U.S.N.M. No. 86265, a specimen 133 mm. in standard length, from 
Valera, Estado de Trujillo, Venezuela, was collected by Dr. H. Pittier. 
Two specimens, F.M.N.H. Nos. 41997 and 41998, from Rio Cogollo, 
Sierra Perijé, Lago Maracaibo Basin, Osgood and Conover, March 
1920, were lent to me by the Chicago Natural History Museum for 
study and report. 
The color pattern of this species is in need of description. Speci- 
mens 34 to 41 mm. have a black spot just behind the head, then a pale 
interspace of 1% scale rows before the black lateral band begins, the 
latter fading out on caudal peduncle, but at 56 mm. the black lateral 
streak is continuous without interruption anteriorly; the round black 
spot near midbase of caudal fin is prominent; black spot in dorsal fin 
distinct, but the blackish streaks along back are obsolete. 
When alive a specimen 79 mm. in standard length had the following 
coloration: Lateral streak black, caudal spot intensely black; 
median fins orange; paired fins orange, with outer rays and margins 
white; a series of orange spots below the black lateral streak on next row 
of scales, one on each scale, and anteriorly a second row of orange 
spots. At this size there is a second black band or streak along the 
upper part of the back, and this is more or less obvious in larger speci- 
