412 Annals of the Carnegie Museum. 



28. Conorhynchos conirostris (Cuvier & Valenciennes). 



7024a, C. M., one, about 400 mm., Januaria, Rio Sao Francisco, Dec. 

 18, 1907. Haseman. 



29. Conorhynchos glaber Steindachner. 



6994a, C. M., one, 52 mm., Cachoeira, Rio Paraguassu, April 14, 

 1908. Haseman. 



Head 3.6; depth 5; D. 1.6; A. 22; eye three times in the head; snout 

 longer than postorbital portion of head; interorbital four times in the 

 head; maxillary barbel reaching to posterior margin of the eye; outer 

 mental barbel to middle of pupil. 



Snout decurved, blunt, the mouth inferior, width of premaxillary 

 band of teeth but little greater than length of eye. Pectoral spine 

 but little shorter than the rays, equal to snout and eye; anterior 

 margin of the spine with two hooks near the tip, the rest slightly 

 roughened, posterior margin with seven large thorns along most of the 

 length, graduated from the second to the basal; dorsal spine equal to 

 the length of the pectoral spine, with a few fine teeth on the basal 

 half of the posterior surface, both surfaces with recurved notches near 

 the tip; adipose fin free behind, six times in the head. 



30. Pimelodus ornatus Kner. 



7232a, C. M., one, 210 mm., Asuncion, March 31, 1909. Haseman. 

 7233a, C. M., one, 185 mm., Rio Jauru, flowing into Rio Paraguay, 

 June 4, 1909. Haseman. 



31. Pimelodus clarias (Bloch). 



From the Sao Francisco basin. 

 72o6a-c, C. M., three, 82-107 mm., Pirapora, Dec. 15, 1907. Haseman. 

 7050a, C. M., one, 290 mm., Penedo, March 20, 1908. Haseman. 

 7207c, C. M., one, 143 mm., Januaria, Dec. 12, 1907. Haseman. 

 72o8a-&, C. M., two, 98-144 mm., Cidade do Barra, Dec. 6, 1907. 



Haseman. 

 72090-5, C. M., seventeen, 104-240 mm., Joazeiro, Nov. 27, 28, 29, 



1907. Haseman. 

 72ioa-c, C. M., three, 120-179 mm., Lagoa Pereira, Dec. 23-26, 1907. 



Haseman. 

 7211a-/, C. M., six, 95-184 mm., Rio das Velhas, May 11, 1908. 



Haseman. 



