282 PROCEEiDINGS OF THE NATIONAL MIJSIEUM vol.94 



posterior nasal opening; pectorals extending one- 

 third way out pelvies; anus five-elevenths or five- 

 twelfths closer to pelvic base than base of caudal 

 fin; no pale bar across caudal peduncle (Peru). 



Astroblepus praeliorum Allen 

 266. Pelvies extending two-tliirds to four-fifths way to 

 anus; interorbital space a little narrower than dis- 

 tance from eye to rear margin of posterior nasal 

 opening; a pale bar across caudal peduncle below 

 spine of adipose fin; pectorals extending one-third 

 to one-half way out pelvies; premaxillary teeth in 

 outer row broadly pointed (Peru to Colombia). 



Astroblepus frenatus ^^ Eigenmann 

 176. Adipose fin with spine movable and connected by a membrane to 

 dorsal surface of caudal peduncle, or continuation of adipose 

 tissue. 

 27o. Pelvies reaching to anus; interorbital space equal to or a little 

 greater than distance from eye to margin of posterior nasal 

 opening; barbel reaches out to last fifth before gill opening; 

 nasal flap sometimes with a short barbel. 

 28a. A pale color bar across peduncle; maxillary barbel reaching 

 to gill opening; pectorals reach one-fourth to middle of 

 pelvies (Ecuador and Colombia). 



Astroblepus cyclopus cyclopus " (Humboldt) 

 286. A pale color bar across caudal pedimcle; maxillary barbel not 

 quite reaching to gill opening; pectorals reaching only to 

 base of pelvies (RIos Dagua and San Juan). 



Astroblepus cyclopus cirratus ^^ (Regan) 

 28c. No pale color bar across caudal peduncle (Santander, Colom- 

 bia) Astroblepus cyclopus santanderensis Eigenmann 



276. Peh'ics not reaching to anus; interorbital sjjace two-thirds to 

 equal to distance from eye to margin of posterior nasal open- 

 ing; no barbel at tip of nasal flap. 

 29a. Maxillary barbel extends four-fifths way to gill opening; pec- 

 torals extend to middle of pelvies; a pale bar across the 

 caudal peduncle (Rio Dagua and Magdalena systems). 



Astroblepus unifasciatus (Eigenmann) 

 296. Maxillary barbel reaching to rear of lower lip or a trifle farther, 

 not over halfway to gill opening; no definite pale bar across 

 caudal peduncle, but region just behind and below the adi- 

 pose spine pale; body plain grayish or with black spots, or 

 sometimes marbled; anus halfway between insertion of pel- 

 vies and base of caudal fin or a little closer to base of pelvies. 

 Astroblepus phelpsi, new species 



ASTROBLEPUS ORIENTALIS (Bonlenger) 



Arges orientalis Boulenger, Ann. Mag. Nat. Hist., ser. 7, vol. 11, p. 601, 1903 

 (Albirregas and Milla Rivers above M6rida, Venezuela). — Regan, Trans. 

 Zool. Soc. London, vol. 17, pt. 3, p. 313, pi. 21, fig. 4, 1904 (Albirregas and 

 Milla Rivers above M6rida). 



M To this epcnies I refer A. mancoi Eigenmann as a synonym. 

 M To this species I refer as a synonym A. chimborazoi Fowler. 

 M I follow Eigenmann and refer A. ventrate (Eigenmann) to this species as a synonym. 



