CHARACINIDAE FROM VENEZUELA—SCHULTZ SoS: 
I would be inclined to hesitate in naming this new genus Saccoderma 
if the dermal saclike structure occurred only on the males, but on the 
new species described below I find it fully developed on the females. 
This discovery causes me to cast serious doubt on Higenmann’s state- 
ment that only the males of O. hastata have the pouch on the lower lobe 
of the caudal fin. In fact, Eigenmann’s figure 33 (Mem. Carnegie 
Ficure 40.—Saccoderma melanostigma, new genus and species: Holotype, U.S.N.M. 
121519, 27 mm. in standard length. 
Ficure 41.—Saccoderma melanostigma, new genus and species: a, Premaxillary tooth; 
b, mandibular tooth; c, enlargement of saclike gland on caudal fin. 
Mus., vol. 7, No. 1, p. 91, 1915) resembles the caudal scales on the 
females of Saccoderma melanostigma more than on the males, and I 
presume that hastata should be reexamined carefully with this new 
- information in mind. 
SACCODERMA MELANOSTIGMA, new species 
Fiaurss 40, 41 
Holotype.—U.S. N. M. No. 121519, a specimen 27 mm. in standard 
length, collected by Leonard P. Schultz, March 17 to 20, 1942, in the 
Rio San Juan near bridge, south of Mene Grande, Motatén system. 
578625—44——_6 
