116 



Annals of the Carnegie Museum. 



6701 a, C. M. A single specimen. 15 mm. Rio Calima. Henn. 



A brightly colored, small species, resembling P. episcopi (Stein- 

 dachner) in the heavily pigmented anal, but having the sides of a 

 uniform color and lacking the series of lateral spots. Basal fourth of 

 the dorsal in the male with a heavily pigmented band, middle portion 

 clear, outer third again pigmented. Outer portion of caudal in both 

 sexes broadly banded with dusky. 



This species occurs in the Rio Atrato and in the Rio San Juan. 



Genus Heterandria Agassiz. 

 Heterandria Agassiz, American Journal of Science, (2) Vol. XVI, 1853, p. 135. 



In this genus the length of the male intromittent organ is about 

 one-third of the entire length. The ventrals are minute, thoracic, 

 and barely reach to the base of the anal. 



40 

 Fig. 4. Heterandria formosa Agassiz. Distal end of intromittent organ. X — • 



No. 6846, I. U. M. Jacksonville, Florida. 



The third or first prolonged ray of the anal of the male has the distal 

 portion club-shaped, without serrations or hooks, the fourth ray ends 

 in an antrorse point, the fifth ray bears dorsally a series of retrorse 

 hooks, the sixth and seventh rays unite terminally to form the dorsal 

 margin of the fin. 



As restricted by Regan, (P. Z. S., 1913, p. 995) this genus includes 

 the type, H. formosa Agassiz, ranging from the Carolinas to Florida, 

 and H. jasciata (Meek) from southern Mexico. The males of the 

 latter i ies have not been d escribed. 



14. Heterandria hasemani Henn, sp. nov. (Plate XX, fig. i.) 



4663, C. M., type, a female, probably immature, 20 mm. 4664 a-c, 



C. M., paratypes, three females, 19-23 mm. Puerto Suarez, 



Bolivia (Paraguay Basin) May 7, 1909. Haseman. 



The limited number of specimens and the lack of males, makes the 



generic reference doubtful. The teeth are spike-like, in several series. 



