CHARACINIDAE FROM VENEZUELA—SCHULTZ OVAL 
CTENOBRYCON SPILURUS (Valenciennes) 
Tetragonopterus spilurus VALENCIENNES, 7m Cuvier and Valenciennes, Histoire 
naturelle des poissons, vol. 22, p. 156, 1849 (Surinam). 
Apodastyanax stewardsont FowuEr, Proc. Acad. Nat. Sci. Philadelphia, vol. 63, 
p. 422, 1911 (Corisal, Venezuela). 
Cienobrycon spilurus EiGENMANN, Mem. Mus. Comp. Zool., vol. 43, No. 4, p. 335, 
1927 (Surinam to Venezuela along coast). 
CREAGRUTOPRS, new genus 
Genotype.—Creagrutops maracaiboensis, new species. 
This new genus, Creagrutops, is a Creagrutus without a complete 
lateral line and may be distinguished from that genus and also from 
Creagrudite Myers by its incomplete lateral line of about 9 or 10 pores. 
Creagrutops has tricuspid teeth arranged as shown in figure 46. This 
arrangement in 3 irregular rows on the premaxillary is practically the 
same as on Creagrutus Ginther and on Creagrudite Myers, its only 
near relatives known to me at this writing. 
Other characters of this new genus are those of the new species 
described below. 
CREAGRUTOPS MARACAIBOENSIS, new species 
Frieurss 45, 46 
Holotype —U.S.N.M. No. 121531, a specimen 22 mm. in standard 
length, collected by Leonard P. Schultz in the Rio Negro below mouth 
of Rio Yasa, March 2, 1942. 
Paratypes—U.S.N.M. No. 121532, 48 specimens, 11 to 22 mm., 
taken along with the holotype and bearing same data. 
Females at 22 mm. standard length contain mature eggs of a rather 
large size for such a small fish. 
_ Description.—The description is based on the types listed above. 
Detailed measurements were made on the holotype and one female 
paratype, and these data, expressed in hundredths of the standard 
length, are recorded first for the holotype, then the paratype in par- 
entheses. Standard length in millimeters 22 (21.6). 
Length of head 27.8 (29.2); greatest depth 29.5 (30.2); length of 
snout 6.84 (7.40); diameter of eye 10.9 (11.6); tip of snout to rear of 
maxillary 9.55 (9.72); width of interorbital space 8.19 (9.26); post- 
orbital length of head 12.3 (12.9); least depth of caudal peduncle 12.3 
(11.6); length of caudal peduncle 21.4 (19.9); length of base of anal 
fin 20.0 (19.9); length of longest ray of anal fin 20.0 (19.9); longest 
dorsal ray 25.0 (24.1); longest pectoral ray 20.5 (19.5); longest pelvic 
ray 16.8 (16.2); length of upper caudal fin lobe 28.7 (29.6) and of 
lower lobe 27.7 (29.6); distance from tip of snout to dorsal fin origin 
52.8 (54.6); snout to adipose origin 83.7 (84.7); snout to anal origin 
61.4 (68.5); snout to pectoral insertion 27.3 (28.7); snout to pelvic 
