CHARACINIDAE FROM VENEZUELA—SCHULTZ 319 
Odontostilbe pulcher EIGENMANN, Indiana Univ. Stud., vol. 7, No. 44, p. 9, 1920 
(Maracay, Rio Bue, Venezuela). 
A specimen, 41.5 mm., from Caripito, Venezuela, 1942, collected 
by Dr. William Beebe, was lent to me for identification and report. 
CHEIRODONTOPS, new genus 
Genotype.—Cheirodontops geayi, new species. 
This new genus is characterized by its teeth, shown in figure 43, 
which resemble those of Holoshesihes Eigenmann. Cheirodontops 
differs from that genus in lacking all traces of teeth on the maxillaries. 
The premaxillary teeth have three prominent points, the middle one 
longest, then on side near base of each outer enlarged point is a minute 
denticle. The dentary has broader incisorlike teeth, with 3 equally 
enlarged points fused together with almost a straight cutting edge, 
and near base of each outer point is a minute denticle (fig. 48). 
Lateral line complete; adipose fin present; caudal fin with scales 
only at base and no saclike organ at base of caudal fin. Other charac- 
ters of this new genus are those of the new species described below. 
This new genus may be separated from all other genera referred to 
the subfamily Cheirodontinae, with a complete lateral line, by the 
shape of the premaxillary and dentary teeth, except Holoshesthes 
Kigenmann. The latter genus has teeth on the maxillary, but these 
are lacking on Cheirodontops. Atopomesus Myers and Othonocheirodus 
Myers have teeth on the maxillary. Although Amblysiilbe Fowler 
has no teeth on the maxillary, all its teeth are tridentate, small, and 
similar in both jaws. ‘This new genus runs down through the key by 
Kigenmann (Mem. Carnegie Mus., vol. 7, No. 1, pp. 15-17, 1915) to 
“‘Holesthes’’ (=Holoshesthes) but differs as indicated above. The 
teeth in upper and lower jaws of Odontostilbe Cope are similar, while 
they differ mn these jaws in Cheirodontops. 
CHEIRODONTOPS GEAYI, new species 
FIGURES 42, 438 
Holotype.—U.S.N.M. No. 121507, a specimen 37.3 mm. in standard 
length, collected in the Rio Guérico and tributaries between San 
Sebastian and San Casimiro, Estado de Aragua, Venezuela, by L. P. 
Schultz, G. Zuloaga, William Phelps, Jr., and R. Sherman, May 12, 
1942. 
Paratypes.—U.S.N.M. No. 121508, 6 examples, 35 to 40 mm., 
taken along with the holotype and bearing same data. | 
Description.—This description is based on the types listed above. 
Detailed measurements were made on the holotype and on one para- 
type, and these data, expressed in hundredths of the standard length, 
