CHARACINIDAE FROM VENEZUELA—SCHULTZ 313 
One specimen, 22 mm., from Caripito, Venezuela, 1942, collected by 
Dr. William Beebe, was lent to me for identification and report. 
Subfamily CHEIRODONTINAE 
KEY TO THE GENERA AND SPECIES OF CHEIRODONTINAE REPORTED FROM 
VENEZUELA 
la. Lateral line incomplete, with about 6 to 8 pores; teeth on premaxillary and 
dentary usually with 7 points; 2 or 3 teeth on maxillary and 5 on each side 
of premaxillary: scales 27 to 31; about 10 scales in front of dorsal origin; 
gill rakers about 6 or 7+-10 or 11 on first gill arch; dorsal rays usually ii, 9; 
anal usually iii, 16 to iii, 18 (range iii, 14 to ii, 19); on lower side of caudal 
peduncle on adult males about 17 to 22 projecting interhaemals; no dermal 
sac or enlarged scales on base of caudal fin. 
Cheirodon insignis Steindachner 
1b. Lateral line complete; interhaemals not projecting as in Cheirodon; dorsal 
rays li, 9. 
2a. Teeth on premaxillary and on dentary usually 7-pointed and similar in both 
jaws, distal part of each tooth enlarged (fig. 41, a, b), much broader than 
its base and sides of teeth in dentary not parallel; maxillary with 2 teeth 
and premaxillary usually with 5 teeth on each side. 
3a. Lower lobe of caudal fin with a dermal bag more or less covered with a 
few enlarged scales (fig. 41c,); anal rays iii, 17 to ili, 19; scales 33 to 35, 
with 5 above and 3 or 4 below the lateral line; black pigment at tips 
of first to fourth or fifth branched rays of dorsal and of anal fins. 
Saccoderma melanostigma, new genus and species 
3b. Base of caudal fin ‘‘naked”’ without enlarged scales and without a dermal 
sac developed, the scales of body ending near base of caudal fin as is 
usual on many species of fishes; anal rays ‘'23 to 25” [probably iii, 21 
COMM ZAI Scales iS 2 tO sae eee mol emiay ke Odontostilbe pulcher (Gill) 
2b. Teeth on premaxillary and on dentary not of same shape (fig. 43), but 
usually 5-pointed, the 2 outer points minute and located at lower sides of 
next inner point of tooth; maxillary with teeth; caudal fin with scales 
only at base and none enlarged, no dermal sac on lower lobe of caudal fin; 
anal rays iii,20 to iii,22; scales 35 to 37; 5 above and 4 below lateral line; 
premaxillary teeth 6 on each side; gill rakers about 8+ 14; a caudal spot 
developed 222 sue Cheirodontops geayi, new genus and species 
Genus CHEIRODON Girard 
Cheirodon GiraRD, Proc. Acad. Nat. Sci. Philadelphia, vol. 7, p. 199, 1854. (Type, 
Cheirodon pisiculus Girard.) 
CHEIRODON INSIGNIS Steindachner 
Chirodon insignis STPINDACHNER, Denkschr. Akad. Wiss. Wien, vol. 42, p. 74, 
pl. 6, fig. 3, 1879 (Rio Cauca). 
The following collections were made by Leonard P. Schultz during 
1942 in the Maracaibo Basin of Venezuela: 
U.S.N.M. No. 121518, 134 specimens, 15 to 25 mm., Rio Negro below mouth of 
_ Rio Yasa, March 2. | 
U.S.N.M. No. 121513, 114 specimens, 17 to 23 mm., Rio San Juan near bridge 
south of Mene Grande, Motatdén System, March 17-20. 
U.S.N.M. No. 121511, 357 examples, 14 to 21 mm., Rio Machango at bridge 
south of Lagunillas, March 16. 
