422 Annals of the Carnegie Museum. 



69. Hemidoras stenopeltis (Kner). 



7186C-&, C. M., two, 1 12-132 mm., Rio Madeira near San Antonio, 



Nov. 3, 1909. Haseman. 

 7187a-/, C. M., six, 107-156 mm., San Joaquin, Bolivia, Sept, 5, 1909. 



Haseman. 



70. Hemidoras aflinis (Steindachner). 



Ji8ga-d, C. M., four, 116-119 mm., San Joaquin, Bolivia, Sept. 5-6, 

 1909. Haseman. 



71. Hemidoras orestes (Steindachner). 



7i99a-c, C. M., three, 75-77 mm., Santarem. Dec. 11-15, 1909. 

 Haseman. 



72. Leptodoras acipenserinus (Giinther). 



7188C-C, C. M., three, 130-140 mm., Maciel, Rio Guapore. Haseman. 



Subfamily Auchenipterin^. 



73. Trachelyopterichthys taeniatus (Kner). 



69960-?, C. M., five, 38-152 mm., Santarem, Dec. 19, 1909. Haseman. 



74. Centromochlus heckeli (Filippi). 



6788a-:>£:, C. M., twenty-six, 48 mm., Santarem, Dec. 6-1 1, 1909. 



Haseman. 

 6786c, C. M., one, 115 mm., San Joaquin, Bolivia, Sept. 5, 1909. 



Haseman. 

 6783a, C. M., one 73 mm., Para, Dec. 24, 1909. Haseman. 

 6784a, C. M., one, 80 mm.. Para, Jan. 15, 1910. Haseman. 

 67870-6, C. M., five, 83-93 nim., Rio Mamore, Sept. 19, 1909. 



Haseman. 

 6785a, C. M., one, 72 mm., Manaos, Nov. 29, 1909. Haseman. 



75. Centromochlus intermedius Steindachner. 



70020-c, C. M., three, largest about 54 mm., Maciel, Rio Guapore, 



Aug. 3, 1909. Haseman. 

 70040-6, C. M., two, 71 mm., Rio Tapajos at Santarem, Dec. 10, 



1909, Haseman. 



