1906.] 



NATURAL SCIENCES OF PHILADELPHIA. 



307 



line. Vent close in front of anal. Color in alcohol dull olive-brown, 

 darker on back, and top of head deep brownish. Fins dull greenish, 

 bases of caudal lobes blackish. A brownish or dusky blotch on several 

 scales about and in lateral line about opposite tip of depressed dorsal. 

 Greenish tints all probably due to the preservative. Iris and adipose 

 eyelid brownish. Length (caudal damaged) 10^ inches. Type. 

 In explanation of Cope's remarks it may be stated that these fishes 



Fig. 9. — Anodus elongatus Agassiz. 



agree best with Anodus elongatus Agassiz, a species from which I am 

 unable to separate it. The pectorals and ventrals, although damaged, 

 reach more than half the distance credited. The ventrals are more 

 anterior in position, or originate under the anterior portion of the 

 dorsal, and not opposite its middle. 



EIGENMANNINA gen. nov. 

 T3-pe Anodus melanopogon Cope. 



Head large, especially opercular apparatus, and upper profile 

 strongly concave. Mandible well produced beyond tip of upper jaw 

 so that mouth is superior. Eye above middle in depth of head. Body 

 heavy anteriorly, and tapering towards caudal. In other respects 

 more or less allied to Anodus. 



(Named for Dr. Carl H. Eigenmann, of the Chair of Zoology in 

 Indiana University, a well-known authority on South American fishes.) 



