THE CATFISHES OF VENEZUELA — ^SCHULTZ 283 



The following specimens were collected by Leonard P. Scliultz in 

 the Maracaibo Basin during 1942: 



U.S.N.M. No. 121125, Rfo GonzAles, tributary to Rfo Chama at La Gonzdles, 

 Estado de M6rida, March 29, 78 specimens, 18.5 to 60.5 mm. 



U.S.N.M. No. 121124, Rio Chama at Estanques, Estado de M^rida, April 3, 

 1 specimen, 45.7 mm. 



U.S.N.M. No. 121123, Rio Barregas, tributary to Rio Chama just below Egido, 

 Estado de M6rida, March 29, 2 specimens, 28.5 and 47 mm. 



ASTROBLEPUS CHOTAE (Regan) 



Arges chotae Regan, Trans. Zool. Soc. London, vol. 17, pt. 3, p. 313, pi. 21, fig. 5, 

 1904 (Chota Valley, Maranon Basin, northern Peru), 



Three of the specimens listed below from the Rio Cobre were meas- 

 ured, and the data are presented in table 12. 



U.S.N.M. No. 121129, Rio Cobre, above its mouth, tributary to Rio Quinta, 

 latter tributary to Rio La Grita, Catatumbo system, March 31, 1942, Leonard 

 P. Schultz, 9 specimens, 35 to 93.5 mm. 



U.S.N.M. No. 101617, Rio Pamplonita, near Cucuta, Colombia, Maracaibo 

 Basin, Nic6foro Maria, 1 specimen, 60 mm. 



ASTROBLEPUS FRENATUS Eigemnann 



Astroblepus frenattis Eigenmann, Proc. Amer. Philos. Soc, vol. 56, p. 676, 1918 

 (Quebrada de San Joaquin, Santander, Colombia). 



U.S.N.M. No. 121128, Rio Torbes, 1 km. above Tdriba, Venezuela, Orinoco 

 drainage, collected by Leonard P. Schultz, March 31, 1942, 72 specimens, 20.5 

 to 52.5 mm. 



ASTROBLEPUS PHELPSI, new species 



Plate 7, D 



Holotype. — U.S.N.M. No. 121126, a male specimen 53.6 mm. in 

 standard length, collected by Leonard P. Schultz, March 31, 1942, in 

 the Rio Cobre above its mouth near La Grita, tributary of Rio Quinta, 

 latter tributary to Rio La Grita, Catatumbo system, Venezuela. 



Paratijpes. — U.S.N.M. No. 121127, 550 specimens, 9 to 65 mm., 

 collected along with the holotype and bear the same data. 



These types were taken from among rubble in rapidly flowing 

 water. 



Description. — The holotype and two paratypes, male and female, 

 were measured, and data for these, expressed in hundredths of the 

 standard length, are recorded in table 12. In addition certain counts 

 were made, and these are presented in table 13. 



The head is contained about 4 times in the standard length, and the 

 greatest depth at origin of dorsal about 4 times; the insertion of the 

 pel vies is nearly under the origin of the dorsal; premaxillary teeth 

 unicuspid but blunt-pointed in outer row, but as is usual in this genus 

 one or two pairs of the median teeth may be biiobed, outer row of 

 teeth on each ramus numbers seven or eight; teeth of lower jaw all 



