Eigenmann: New and Rare Fishes from South America. 83 



8. Nannorhamdia nemacheir Eigenmann & Fisher, sp. nov. 



7125, C. M., type, 105 mm., Girardot, Colombia. Eigenmann. 



Heads; depth 7; D. 7; A. loorii; eye 5 in the head; snout 2.4-3; 

 interorbital .8. 



First dorsal and pectoral rays prolonged beyond the rest of the fin, 

 the prolongation more pronounced in the female than in the male; 

 maxillary barbel reaching to the end of the ventral. 



A narrow, dark, lateral band, indictinct in some specimens. A dark 

 band across the nape, other cross-shades at the origin, at the latter 

 half, and behind the tips, of the short rays of the dorsal. Fins hyaline; 



Cetopsorhamdia Eigenmann & Fisher, gen. nov. 



First dorsal and first pectoral rays not spinous; anal moderate; 

 lower caudal lobe the longer; origin of ventrals under the dorsal; 

 adipose fin three times as long as high; a small frontal fontanel, far 

 removed from the long parietal fontanel; skull covered with skin, 

 not granular; occipital process minute; orbit without a free margin; 

 head subconical, the snout projecting. Vomer and palate without 

 teeth. 



9. Cetopsorhamdia nasus Eigenmann & Fisher, sp. nov. 



7124, C. M., type, 72 mm. Honda, Colombia. Eigenmann. 



Head 4.3; depth 6.25; adipose 6.3; snout 2.5 in head; eye 7.5 in 

 head, 2 in interorbital; D. 7; A. 10. 



Maxillary barbel reaching a little beyond the beginning of the 

 pectorals; base of anal shorter than adipose. 



Everywhere with small purplish dots, which are most numerous 

 dorsally. A dark band at base of caudal. A light band, about as 

 wide as the eye, across the base of the occipital. 



10. Ancistrus melas sp. nov. 



7335' C. M., type, male, 106 mm.; 13650, I. U. M., paratypes, two, 



62 mm., Condoto. Wilson. 

 7336a, C. M.; 13651, I. U. M., paratypes, two, 52 and 65 mm. Raspa- 



dura. Wilson. 



These specimens came from contiguous localities on opposite sides 

 of the continental divide. 



D.I, 7; A.I, 4. 



Length to end of plates at base of caudal 78 mm.; length of head 



