URANIDEA 329 



that our specimens differ from that species chiefly in the pres- 

 ence of prickles in the axils evidently a variable character as 

 shown by our collections and in the height of the first dorsal, 

 which is % the length of the head (J^ the head in specimens of 

 U. gracilis examined) . It appears not impossible that the pres- 

 ent form should be regarded as a variety of gracilis. 



30 F 



