222 PROCEEDINGS OF THE NATIONAL MUSEUM vol.94 



shorter, included, so that mouth is subterminal ; teeth vilhform in a 

 narrow band on premaxillarics and dentaries; no teeth on vomer or 

 palatines. 



Body compressed posteriorly, head depressed anteriorly, profile 

 rounded; distance from anal origin to midbase of caudal fin Iji in 

 snout to pelvic insertion; snout to dorsal about 1%, head 8)2, depth 5, 

 width of head at pectoral base 5, all in standard length; first ray of 

 dorsal longest, extending past next branched ray, margin of this fin 

 concave; first branched ray of anal longest, rear margin a little con- 

 cave; first ray of pectoral a trifle longer than first branched ray, rear 

 margin truncate; first branched ray of pelvics longest, rear margins 

 truncate. 



Color. — A pale color bar extending from base of pectorals past upper 

 ends of gill openings across occiput, the blackish opercle extending 

 into this band, but the thin membranes around operculum white; a 

 white spot below base of first three dorsal fin rays, but not in front of 

 fin; base of dorsal and back below dorsal blackish, then a pale hour- 

 glass-shaped area, with an elongate blackish blotch along lateral line, 

 then paler below; a wide pale bar between dorsals extending to in 

 front of anal; another wide pale band across caudal peduncle; base of 

 caudal fin blackish, sharply contrasting with pale caudal fin; all fins 

 pale except base of adipose and base of dorsal; anal base with some 

 black pigment cells; dorsal surface of head blackish; tip of snout white; 

 mental barbels white; basal half of maxillary barbels pigmented. 



Remarks. — This new species differs in color from all other species 

 referred to the genus Cetopsorha mdia and may be separated from them 

 by the key on pages 218-220. 



Named shermani in honor of Roger Sherman, of the Standard Oil 

 Co. of Venezuela, who helped me in many ways while 1 was in 

 Venezuela. 



CETOPSORHAMDIA PICKLEI. new species 



Plate 2, D 



Holotype.—V.S.l^.M. No. 121217, a specimen 88 mm. in standard 

 length, collected by Leonard P. Schultz, March 25, 1942, in the Rio 

 Motatan, 4 km. above Alotatan, Maracaibo Basin. 



Paratypes (all collected by L. P. Schultz). -U.S.N.M. No. 121218, 

 37 specimens, 45 to 118 mm., taken along with the holotype and bear- 

 ing the same data; U.S.N.M. No. 121222, 29 examples, 46 to 96 mm., 

 March 24, 1942, from the Rio Jimelles, 12 km. east of Motatan, 

 Motatan system; U.S.N.M. No. 121220, 7 specimens, 53 to 95.5 mm., 

 March 24, 1942, from the Rio Motatan, 8 km. below Motatan; 

 U.S.N.M. No. 121219, 24 specimens, 37 to 75.5 mm., March 17 and 

 20, 1942, from the Rio San Juan near bridge south of Mene Grande, 

 Motatan system; U.S.N.M. No. 121221, 17 examples, 37.5 to 70.5 



