Eigenmann: The Serrasalmin^ and MvLiNiE. 



257 



5782 a. C. M. About 170 mm., 157 mm. to end of lateral line. 

 Nov. 15, 1909. Haseman. 



Fig. 8. Dentition of Serrasabno humeralis Cuvier & Valenciennes. The upper 

 cut represents the palatines of a specimen 170 mm. long, the rest are from a speci- 

 men 133 mm. (Greatly enlarged.) 



5783 a-g. C. M. 62-114 mn^- Santarem, Dec. 8-1 1, 1909. Hase- 

 man. 



5769 a-c. C. M. 41 to about 180 mm. Lagoa de Paranagua, Jan. 



16, 1908. Haseman. 



The counts and measurements of a number of specimens are as 



f „ 15 16 17 18 32 33 34 35 36 26 28 



lollows: U. — , — , ^, — ; A. — , — , — , — , — ; serrae — , — , 

 1362 I 3 5 I I 21 



30 31 33 



The denominator indicates the number of specimens 



having the given character. 



Depth in the length to end of lateral line, 1.8-2. 



24. Serrasalmo humeralis gracilior Eigenmann, var. nov. 



The following specimens are very much slenderer than typical 

 specimens of humeralis. 



