396 Annals of the Carnegie Museum. 



5. Rhamdia sebse (Cuvier and Valenciennes). 



7262a-/?, C. M., 67-221 mm., Entre Rios, Rio Parahyba, June i, 1908. 



Haseman. 

 7267a, C. M., 210 mm., Campos, Rio Parahyba, June 14, 1908. 



Haseman. 

 7269a, C. M., 90 mm., Barra da Pirahy, Rio Parahyba, July 12, 1908. 



Haseman. 

 7286a-c, C. M., 42-104 mm., Jacarehy, Rio Parahyba, July 15, 1909. 



Haseman. 

 7008a, C. M., 130 mm., Rio das Velhas, May 13, 1908. Haseman. 

 7270a, C. M., 121 mm., San Joaquin, Sept. 4, 1909. Haseman. 

 7265a-&, C. M., 175-234 mm.. Para, Dec. 24, 1909. Haseman. 



The specimens referred to R. sebcc are from Entre Rios, Campos, 

 Barra da Pirahy, Jacarehy, all in the Parahyba Basin, and from the 

 Amazon basin. In all but two from Entre Rios the dorsal is I, 6. 

 In the exceptions it is I, 7. The maxillary barbel extends beyond base 

 of caudal in the young from San Joaquin, Rio das Velhas, Jacarehy, 

 and Barra da Pirahy, to the second third of the adipose in the largest 

 from the Rio Parahyba, beyond the middle in the largest from Para, 

 [n specimens of equal size the barbels seem to be a little shorter in the 

 specimens from the Parahyba. Adipose 2.25-3 times in the length. 

 Pectoral spine 2.5-1.66 times in the length, much longer in the adult 

 than in the young. Eye 5-6.5 in the head. 



6. Rhamdia quelen (Quoy and Gaimard). 



This species is represented by specimens from localities on the 

 coastal streams from the Rio Sao Francisco to Paranagua as follows: 



72640-^, C. M., 50-168 mm., Rio Coite, into R. Sao Francisco. Nov. 



6, 1907. Haseman. 

 7278a, C. M., 145 mm., Rio Sao Francisco, June 10, 1909. Haseman. 

 'J2'j2a-b, C. M., 126 mm., Raiz da Serra, Rio Mogy, into Santos Bay. 



July 26, 1908. Haseman. 

 7274a-c, C. M., 79-115 mm., Cubatao, 7 miles west of Santos, August 



I, 1908. Haseman. 

 y266a-b, C. M., 59-95 mm.. Aqua Quente, Ribeira da Iguape, Nov. 



27, 1908. Haseman. 

 7268a-c C. M., 31-174 mm., Iporanga, Ribeira da Iguape, Dec. I, 



1908. Haseman. 



