﻿ICHTHYOT.OGICAI RECONNAISSANCE OF COLOMBIA 



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times disappears ; margin of caudal rusty, a submargiual dark baud made 

 up of spots, the base dusliv. tlie space betweeu the submargiual baud and 

 the base light. Dorsal faiutly spotted. 



Type, a male. S5 mm. Caldas. CM. No. 4868. 



Paratypes, forty-six, about 21-80 mm., mostly females. Caldas. CM. 

 No. 4869 a-u, I.U.M. No. 12711 a.n. 



Paratypes, fifteen, the largest 84 mm. Cisuero. CM. No. 4870 a-h, 

 I.U. No. 12712 a-g. 



12. Cvclopium unifasciatum sp. nov. 



Allied to C. trifasclatum. differing in the length of barbels, the length 

 of ventrals, the nature of the nasal barbels and the color. 



Head 4. depth 6 : D. 7 : A. 7 ; interoeular 3.5-4 in the head, nearly 

 equal to the distance bet\Yeen eye and nares. Nasal flap broad, its outer 

 angle prominent but not produced into a distinct barbel, its outer margin 

 about equal to the interorbiial ; barbel not quite reaching gill opening ; 

 pectoral broad, its divided rays extending about to the ventrals, the fila- 

 ment about ecjual to the length of the head, extending beyond the base of 

 the ventral : ventral short, lanceolate, its outer ray slightly produced, 

 reaching three-fourths or more to the anus, its origin slightly in advance 

 of the vertical from the front of the dorsal ; anterior anal rays in the 

 female extending slightly beyond the tip of the later ones when the fin 

 is closed but not extending to the caudal, the anterior ones of the male 

 not extending to the tip of the later ones, a broader membrane between 

 the second and third ray in the male; outer rays of the caudal distinctly 

 produced ; adipose a low ridge 3.5 in the length, ending in a free, movable 

 spine which is attached to the back by a thin membrane ; dorsal low, 

 the rays extending to about the same point when the fin is depressed, ex- 

 cept the first one, which is slightly prolonged, not quite equal to the head 

 in length ; distance between dorsal and snout about 2 in the length ; outer 

 teeth of the premaxillary pointed, color very variable : lightest colored 

 ones reddish yellow, with a few dark spots- and marblings, the darker spots 

 and color as a rule increasing with age ; usually a light band, clear or 

 marbeled, from the posterior portion of the spine of the adipose and the 

 back of the caudal peduncle obliquely downward and forward; always a 

 small black spot at the base of the spine. This spot conspicuous in the 

 light colored individuals but merging with the dark color of the back in the 

 darker individuals. 



Type, a male. 57 mm. . Caldas. C.3I. No. 4871. 



Paratypes. seventy, the largest a female, 68 mm. Caldas. CM. No. 

 4872 a-p, I.U. No. 12713 a-p. 



13. Cyclopium ventrale sp. nov. 



Allied to C inunnoi-atujii. 



Plead 4-4.33 : depth 5 in male, 6 in female ; D. 7 ; A. 6 ; interorbital a 

 little over 4 in the head, less than distance between eyes and nares ; nasal 

 flap broad, its outer angle produced in a barblet. flap and barblet about 

 equal to interoeular; barbel not quite reaching gill opening or a very little 

 beyond; pectoral broad, rounded, the divided rays not reaching ventral. 



