eigenmann: the cheirodontin^. 



61 



with a few diverging stria?. All but the three or four last of the divided anal rays 

 of the male with hooks. 



32. Compsura heterura sp. nov. (Plate X, fig. 1.) 

 6808, C. M., type cf , 36 mm. 6809a-k, C. M., paratypes, five males and eight 



females, largest 37 mm. Queimadas, Rio Itapicuru, March 2, 1908. Hase- 



man. 

 6810a, C. M., cf, 31 mm. Barreiras, Lagoaof Rio Grande of Rio San Francisco, 



Jan. 3 and 4, 1907. Haseman. 

 6811a-c, C. M., c?, 32 mm. Santa Rita, Jan. 24, 1908. Haseman. 

 Range : Rio San Francisco and Rio Itapicuru. 

 This species with the general appearance of a Cheirodon can readily be dis- 



FiG 19 Compsura heterura Eigenmann. a, outUne of side of head; b, top of head, showing frontal 

 (/) and parietal, or occipital (o) fontanels; c, c', right and left premaxillaries; d, maxiUary, e, mandible of an 

 individual, 6809, C. M., greatly enlarged;/, premaxiUary of another individual; g, scaUng of the tail of a male, 

 6808, C. M. (All figures greatly enlarged.) 



tinguished by the black upper half of the first dorsal membrane together with the 

 black tip of the dorsal. 



