Eigenmann: Some Species of Rhamdia. 397 



73ioa-c, C. M., 40-54 mm., Xiririca, Dec. 5, 1908. Haseman. 

 7288fl-c, C. ]\I., 30-155 mm., Morretes, near Paranagua, Jan. 4, 1908. 

 Haseman. 



The specimens from localities in the Paraguay basin are as follows: 

 7271a, C. M., 219 mm., Sapucay, April 5, 1909. Haseman. 

 7279a-/, C. M., 70-138 mm., Corumba, May 2, 1909. Haseman. 

 7281a, C. M., 149 mm., Puerto Suarez, May 6, 1909. Haseman. 

 7284a-/", C. M., 95-121 mm.. Villa Hays, April 13, 1909. Haseman. 

 72730-6, C. M., 1 10-150 mm., .San Matias, June 8, 1909. Haseman. 



From the Tiete basin we have twelve specimens. 

 7263a-/, C. M., 53-175 mm., Mogy das Cruzes, Rio Tiete, July 19, 



20, 1908. Haseman. 



In the specimens from the coastal streams, the Sao Francisco, Rio 

 Coite, Parahyba, tributaries of Santos Bay, and Riberao, the dorsal 

 is uniformly 1.6, the maxillary barbel extends to below some portion 

 of the adipose. 



In the specimens from the Paraguay basin the dorsal is 1.6 in six- 

 teen specimens, 1.7 in but one from Corumba. The maxillary extends 

 to the origin of the adipose in the Sapucay specimen and in one from 

 San Mateo, to below some part of the posterior half of the adipose in 

 the rest. 



In the specimens (No. 7263), from the Parana basin at Mogy das 

 Cruzes, the dorsal is uniformly 1.6. The maxillary is unusually short, 

 reaching little beyond the origin of the dorsal in the next to the largest 

 specimen, and little beyond the origin of the adipose in any of them. 

 Interorbital 3-3.33 in the head. There is in all of these much varia- 

 tion in color. 



