﻿ICHTHYOLOGICAI. RPJCONXAISSAXCE OF COLOMBIA 



27 



Posterior rays of male anal lieayily pignieurecl. forming a conspicuous, 

 brigM black spot. In females, tliis is mncli less noticeable. 

 Type, a female. 26 mm.. C.IM. No. 4S35. 



Paratopes, ten males. 17-22 mm., ten females, 12-2S mm.. CM. No. 

 4836 a-e; I.U.M. Xo. 126.89 a-f. 



Rio San Juan at Istmina. Colombia. 



' 32. Heterandria colombianus Eigenmami and Hemi sp. nov. 



Head 4.25-4.5 : depth at origin of anal 3.5 ; deptli of caudal peduncle 

 5.1-5.6 in length to base of caudal ; catidal peduncle 1.2 in head. Eye 3 in 

 head: interorbital width 3 in head. 



D. S ; A. 9 : P. 14 : T. 6 : scales 27-29 in horizontal or lateral line 

 series ; S in transverse series. 



Body form slightly robust : snout broad and chin steep ; profile liblioue. 

 Origin of the dor<al over last rays of the anal. In the single male, the 

 anal fin is mridined into a narrow sword-like organ, without hooks. 1.6 

 times the length of the head. The distance from the tip of the snout to 

 the origin of the dorsal (In females i is equal to that from the origin of 

 the anal to the end of the middle rays of the caudal. Pectorals reach 

 over middle of ventrals; the latter do not quite reach the vent. Caudal 

 subtruncate or slightly rounded. 



General color in spirits olivaceous, belly yellowish. All fins are with- 

 out color or pigment. Starting about the distance of the eye back of the 

 pectoral origin, is a series of six or seven vertical streaks or narrow dark 

 bars. 



Dentition consists of two series of narrow spike-like teeth. The anal 

 of the male of this species resembles exactly that of Heterandria pleuro- 

 spiliis (Giintber) of Guatemala and of H. hitzi Meek of Mexico. 



X"one of the females are pregnant. 



Type, female. 64 mm.. CM. Xo. 4837. 



Paratypes. one male. 35 mm., three females. 56-71 mm.. CM. Xo. 

 4838 a-b: I.U.M. X'o. 12690 a-b. 



Brackish water, motith of Rio Dagua. Colombia. 



