152 MEMOIRS OF THE CARNEGIE MUSEUM 



c. Nape usually without a distinct light band; dorsal, caudal, anal and ventrals edged with 

 white. 

 d. Maxillary barbels not quite reaching gill-opening; dorsal spine rough on both edges. 



albomarginatus. 



dd. Maxillary barbels reaching a little beyond tip of humeral process raninus. 



{cc. Nape with a zigzag cross-band; anal margined with white acanthochira. 



hb. Teeth on anterior margin of the pectoral less than half the width of the spine cottoides and 



bufonius.) 



28. Pseudopimelodus villosus sp. nov. (Plate X, fig. 1.) 



? Pimelodus raninus (not of Ciivier and Valenciennes) Muller and Troschel, 



in Schomburgk, Reisen, III, 1848, 628 fall rivers). 

 Pimelodus (Pseudopimelodus) raninus Peters, MB. Akad. Wiss. Berlin, 1877, 470 



(Apure) . 

 Pseudopirnelodus villosus Eigenmann, Repts. Princeton Univ. Exp. Patagonia, 



III, 1910, 384 (name only). 



Type, 148 mm. Potaro Landing. (Carnegie Museum Catalog of Fishes 

 No. 1677.) 



Cotypes, two specimens, 148 and 142 mm. Potaro Landing. (I. U. Cat. No. 

 12056.) 



Fig. 32. Outline of Pseudopimelodua villosus Eigenmann. Type. C. M. Cat. No. 1677. 



Cotype, one specimen, 38 mm. Kumaka, Demerara. (C. M. Cat. No. 1680.) 

 Cotype, one specimen, 52 mm. Wismar. (C. M. Cat. No. 1679.) 

 Head 3-3.2; depth 5-5.3; D. 1,6; A. 11; eye 3 in snout, 10 in head, 5 in 

 distance between the eyes. 



Everywhere covered with fine hair-like filaments, these especially abundant 

 above the pectoral. Width of head scarcely less than its length; depth of head a 

 little more than half its length; head flat above; anterior nostrils with very short 

 tubes; jaws equal; width of mouth equaling length of head without snout; depth 

 of premaxillary bands of teeth 6 in their width; a sharp backward prolongation at 

 the outer angle; maxillary barbel reaching middle of pectoral, outer mental barbel 



