U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 94 PLATE 9 





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A, B, Pseudancistrus pediculatus cobrensis, new subspecies: Holotype (U.S.X.M. Xo. 

 121036), 78.6 mm. in standard length; C, D, Ancistrus triradiatus martini, new subspecies: 

 Holotype (U.S.N.M. No. 121064), 81.5 mm. Photographs. 



