50G On neic CichUd Fishes from South America. 



and anterior rays of soft dorsal. Dorsal XVII 10; last 

 spine ^ or a little more than ^ the length of head. Anal 

 III 7-8. Dorsal and anal scaleless. Pectoral a little shorter 

 than head, extending to above the anal spines. Caudal 

 truncate or sliglitly emarginate. Caudal peduncle longer 

 than deep. A blackish blotch on and below the fourteenth to 

 sixteenth scales of the lateral line; traces of dark cross-bars 

 and of a lateral band ; a dark spot at base of caudal ; vertical 

 fins dusky. 



Three specimens, 75 to 150 mm. in total length, from 

 Tado, Rio San Juan, Choco, S.W. Colombia, collected by 

 Mr. G. Palmer. Three smaller examples (45 to 60 mm.) are 

 not included in the description ; they have the same number 

 of scales and fin-rays as the types. 



This species is related to G. camopiensis, Pellegrin, from 

 Guiana, which has XV-XVI 11-12 dorsal rays, and differs 

 also in the deeper prseorbital and more anterior position of 

 the lateral blotch. I have much pleasure in naming this 

 species after Dr. Pellegrin, who has kindly sent me one of 

 the types of G. camopiensis for comparison. 



Geo2?hagus hondcc, sp. n. 



Depth of body 2§ to 23 in the length, length of head ?>. 

 Snout 2^ in the length of liead, diameter of eye 4, interorbital 

 width 4 to 4^, depth of pra^orbital 3 to 3^. Maxillary nut 

 reaching eye; jaws equal anteriorly ; fold of lower lip con- 

 tinuous or not ; cheek with 5 or 6 series of scales ; 12 or 13 

 gill-rakers on lower part of anterior arch. Scales 28-2i> ^^^ 

 1^ between lateral line and anterior rays of soft dorsal. 

 Dorsal XVI 9-10 ; spines subequal from the fifth ; last I the 

 length of head. Anal III 7-8. Dorsal and anal scaleless. 

 Pectoral shorter than head, extending to above vent. Caudal 

 slightly emarginate. Caudal peduncle' nearly as long as 

 deep. Body with faint bars bearing a series of blotches 

 along middle of side ; soft vertical tins spotted. 



Two specimens, 80 to 85 mm. in total length, from Honda, 

 Colombia, presented in 1909 by Sir Bryan Leighton. 



This species is closely related to G. crassilahris, Steind,, 

 from Panama, but dift'orsin the smaller head and fewer scales. 

 Dr. Pellegrin has very kindly informed me that the sjiecimens 

 of G. crassihihris in tiie Paris IMuseum resemble Steimiachncr's 

 type in having 2^ series of scales between the lateral Hue 

 and the anterior ray of the soft dorsal. 



