CHARACINIDAE FROM VENEZUELA—SCHULTZ 307 
Two specimens, 50 and 59 mm., from Caripito, Venezuela, 1942, 
collected by Dr. William Beebe, were lent to me for study and report, 
They are referred to this species with some uncertainty. 
Undoubtedly, when sufficient specimens of this form from the 
Upper Orinoco system and from the Maracaibo Basin are available for 
critical comparison, the two populations will be shown to be sub- 
specifically different. However, at the present time it seems advisa- 
ble to refer all the various populations to the species beni, which it 
closely resembles. See table 23 for counts. 
The following color notes were recorded for a specimen from the Rio 
Chama at Estanques: Pelvic, pectoral, and adipose fins yellowish 
orange; front of anal fin orange; dorsal surface of eye red; area in front 
of eye yellow; central area of upper and lower caudal lobes bright red; 
back yellowish orange; lateral band and lower sides silvery, the lateral 
band is dark grayish or plumbeous in color on caudal peduncle; no 
caudal spot. The following color notes were recorded for a specimen 
from the Rio Motatdn, 4 km. above Motatdn: Dorsal surface of eye 
orange; back yellowish; pelvics yellowish orange as is front of anal fin; 
central area of caudal lobes bright red, with yellowish color basally; 
lateral band grayish; dorsal and anal fins slight grayish distally; no 
caudal spot. 
Genus CREAGRUDITE Myers 
Creagrudite Myrs, Bull. Mus. Comp. Zool., vol. 68, No. 3, p. 118, 1927. (Type, 
Creagrudite maxillaris Myers.) 
CREAGRUDITE MAXILLARIS Myers 
Creagrudite mazillaris Myrrs, Bull. Mus. Comp. Zool., vol. 68, No. 3, p. 118, 
1927 (sandbank on Colombian border, Rio Negro, Cucuhy, Brazil; mouth of 
Curamuni, Rio Cassiquiare, Venezuela).—E1GENMANN and Mysrs, Mem. 
Mus. Comp. Zool., vol. 48, pt. 5, p. 547, 1929 (Cucuhy; mouth of Curamuni, 
Rio Cassiquiare). 
Genus TETRAGONOPTERUS Cuvier 
Tetragonopterus CuvibnR, Régne animal, vol. 2, p. 166, 1817. (Type, Tetragonop- 
terus argenteus Cuvier.) (Ref. copied.) 
KEY TO THE SPECIES OF TETRAGONOPTERUS FROM VENEZUELA AS REPORTED IN 
THE LITERATURE (AFTER EIGENMANN) 
la. Anal rays 36 or 37; occipital process bordered by 5 to 7 scales on each side; 
caudal lobes scaled for about half their length; distance of dorsal from tip 
of snout greater than distance of pelvics from tip of snout; pelvics equi- 
distant from snout tip and last third or fourth of anal; 12 to 16 azygous 
predorsal scales; scales 7 to 9-32 to 35-3% to 5. 
Tetragonopterus argenteus Cuvier 
1b. Anal rays 32 or 33; occipital process bordered by 3 or 4 scales on each side; 
caudal lobes densely scaled to near tip; dorsal and pelvics about equidistant 
from tip of snout; pelvics equidistant from tip of snout and end of anal; 8 
or 9 azygous predorsal scales; scales 7-29 to 34-3%. 
Tetragonopterus chalceus Agassiz 
