112 



tilated in the dissection by tlie time tlie abnorniiility was noticed that it 

 was ont of tlie question to get a i>hotograph of all the aypendages in 

 liositioii. I. therefore, preserved the appendages and give herewith a 

 drawing of the posterior view of both. 



The first and second pairs of appendages were niodilied in the usual 

 way and in no waj- differed from the corresponding appendages in the 

 normal males of the same species. The additionally modified third pair 



Fiff. 1. 



Fig. 2. 



resemble in plan almost exactly the sectuid pair. The exopod and the 

 segmented tlabellum of the endopod are much less reduced and much more 

 extensively provided with feathered setio than the second pair. They are 

 of a1)out the same size and in position converge and tit against the second 

 pair of appendages much in the same manner that these do against the 

 first. Whether they were in any way functional I am, of course, unal)le 

 to say. 



r. Description of a Xew Species of Darter from Tippecanoe 



Lake. 



W. J. MOENKHAUS. 



During the summer of 180G, Avhile collecting large (piantities of Per- 

 cina caprodes in Tippecanoe Lake, a single large specimen of darter was 

 taken which could not be identified with any described species. I thought 

 then and since, until recently, that it might be a hybrid between Percina 

 caprodes and Hadropterus aspro because of evident intermediate charac- 

 ters. After holding the specimen for six years with the hope that other 

 specimens might be taken, I last year published a note in the Proceedings 

 of the Indiana Academy* under the title "An Aberrant Etheostoma" in 



For 1902, pp. 115-116. 



