CHARACINIDAE FROM VENEZUELA SCHULTZ 347 
The following description is given to supplement that made by 
Eigenmann in 1911. Detailed measurements were made on two speci- 
mens, and these data, recorded in hundredths of the standard length, 
are given below, respectively. Standard length in mm. 37.3 (42.0). 
Length of head 25.5 (28.6); greatest depth of body 31.1 (31.4); _ 
length of snout 5.90 (7.62); diameter of eye 8.58 (8.33); length from 
tip of snout to rear edge of the maxillary 9.65 (11.0); width of interor- 
bital space 8.31 (9.28); postorbital length of head 12.6 (14.8); least 
depth of caudal peduncle 12.9 (12.1); length of caudal peduncle 18.0 
(18.8); least preorbital width 1.34 (1.48);length of anal fin base 23.1 
(22.1); length of longest ray of anal fin 14.7 (14.3); longest dorsal ray 
Ficure 52.—Bryconamericus meridae (Eigenmann): U.S.N.M. No. 121469, 38 mm. in 
standard length. 
20.1 (18.3); longest pectoral ray 19.6 (20.2); longest pelvic ray 13.9 
(13.8); length of upper caudal fin lobe 22.8 (24.5); of lower caudal 
fin lobe 24.1 (23.8); distance from snout to dorsal fin origin 55.0 (55.0); 
snout to anal origin 63.8 (65.4); snout to adipose origin 86.0 (87.4); 
snout to pectoral insertion 24.1 (25.2); snout to pelvic insertion 47.2 
(48.4); snout to anus 57.8 (60.2); distance from dorsal origin to mid- 
caudal fin base 51.0 (51.6). 
The following counts were made, respectively: Dorsal rays u, 8 
(i, 8); anal 1, 13 Gii, 15); pectoral i, 10-1, 10 G, 9-4, 9); pelvic i, 61, 6 
G, 6-1, 6); branched caudal fin rays 17 (17); number of scales from 
upper edge of gill opening to midcaudal fin base 35 (84); scales above 
lateral line 5 (5) and below it to pelvic insertion 3 (3); scales in front 
of dorsal 12 (12) and 1% (14) alongside of supraoccipital process; 
teeth in outer premaxillary row 4-4 (4-4) and in the inner row 4-4 
(4-4); teeth on maxillary 3-3 (4-5). 
Body a little compressed, greatest depth usually 3.2 to 3.4, head 
about 3.6 to 3.8 in standard length; snout 1% in eye and about 4.1 or 
578625—44—_8 
