PLATE 1. 



Fig. 1— IchthKlurus furcahi8(0- <£F.) Gill. 

 Texas. From tj-pes of afflnis 



Fig. a— IchthsDlurus furcatus (O. <& V.) Gill. 

 Texas. From types oi 'afflnis. 



Fig. 3 — Ichthaelurua robustus (Jordan.) 

 (From type.) 



