EDWIN CHAPIN STARKS 27 



is also the length of the pectoral as compared with the dorsal. In other 

 respects (except "Die kopfbreite zwischen den kiemendeckeln erreicht y^ der 

 kopflange," which is a mistake, as shown in Dr. Steindachner's picture of the 

 type) these specimens agree with Pimclodina flavipinnis. The eye in the 

 head, the depth above the ventrals, the net-work of sensory tubes over the 

 head, the distance of the adipose dorsal from the dorsal, and the color, with 

 several rows of brown spots on the upper half of the body, all agree with 

 that species. 



87. Pinirampus pinirampu (Spix). 



Four specimens of this well-marked species were taken at Para. 



88. Rhamdia sebae (Cuvier and Valenciennes). 



A number of specimens were collected at Para. Comparing a specimen 

 6 inches in length collected in British Guiana by Dr. Eigenmann with these 

 of equal size the eye is a little smaller, the body and caudal peduncle not so 

 deep or so compressed, and the fontanel a trifle wider. 



89. Rhamdia quelen (Quoy and Gaimard). 



A couple of specimens were taken in the ponds at Ceara Mirim. The 

 maxillary barbels do not reach to the middle of the adipose dorsal, but 

 otherwise these differ only in minor characters from Rhamdia sehce and these 

 are such characters that might be expected to intergrade in a sufficiently 

 large series. It is probable that they represent only one species. 



90. Pimelodus altipinnis Steindachner. 



A common species in the market at Para, where several specimens were 

 taken. 



91. Pimelodus clarias (Bloch). 



A couple of specimens collected by Dr. Baker and Mr. .Mann in the 

 Rio Madeira about 400 miles from its mouth. 



92. Brachyplatystoma filamentosum Lichtenstein. 



A number of specimens of this species were collected at Para. 



93. Brachyplatystoma vaillanti (Cuvier and Valenciennes), 



This species is a common one in the market at Para, where a nmnber 

 of specimens were collected. 



94. Brachyplatystoma rousseanxii (Castelnau). 



A half dozen specimens, from 11 to 14 inches in length without the 

 caudal filament, were collected at Para. The following notes show some 



