248 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 95 
in inner row of premaxillary, one 
tooth on each side in outer row 
sometimes out of line; anal rays 
15 to 438. 
Bryconamericus EHigenmann (p. 338) 
51b. Lateral line incomplete, of 3 to 18 
pores; maxillary teeth if present 
crowded on upper anterior angle; 
anal sheath of scales short, incom- 
plete; anal rays 12 to 34. 
Hemigrammus Gill (p. 348) 
50b. Caudal fin naked except at its base, scales 
on middle of lobes of caudal fin never 
minute and not extending more than 
one-fourth way out on longest rays. 
54a. Lateral line incomplete; about 2% scales 
bordering on one side of supraoccipital 
process; sheath of scales on anal base 
only along anterior half or less; usu- 
ally 5 teeth in inner row on pre- 
maxillary. 
Hyphessobrycon Durbin (p. 349) 
54b. Lateral line complete. 
55a. Second suborbital not covering cheek 
and not in contact with preopercle; 
about 5 teeth in inner row on 
premaxillary; premaxillary-maxil- 
lary borders usually sharp-angled 
where they meet; usually 4 scales 
bordering on one side of supraoc- 
cipital process; anal rays 18 to 48. 
Astyanax Baird and Girard (p. 353) 
55b. Second suborbital in contact with 
lower limb of preopercle; usu- 
ally 4 teeth in inner series of 
premaxillary; anal rays 15 to 43; 
2 to 2% scales bordering on one 
side of supraoccipital process; anal 
sheath of scales along base of anal 
rays at least anteriorly. 
56a. None to 6 teeth crowded at anterior 
upper portion of maxillary. 
Bryconamericus Eigenmann (p. 338) 
56b. Teeth along greater part or along 
entire edge of maxillary. 
Hemibrycon Ginther (p. 361) 
Genus CURIMATELLA Ejigenmann and Eigenmann 
Curimatella EIGENMANN and E1gENMANN, Ann. New York Acad. Sci., vol. 4, 
p. 7, 1889. (Type, Curimatella lepidurus Kigenmann and Higenmann.) 
The following key to the species of Curimatella reported from 
Venezuela was prepared from the literature. A further study of 
