15. 



Genus Bucephalobus Steiner, 193'^ 

 (Key to species from Allen, 1950) 



1. Lips distinct, pointed, not amalgamated 2 



Lips completely amalgamated, low rounded 3 



2. Terminus of female tail bluntly rounded, male tail mucronate 



striatus (Bastian, 1865) Thorne, 1937 



Terminus of female tail not bluntly rounded, male tail without 

 mucronate process oxyuroides (de Man, 1876) Steiner, 1936 



3. Lips separated by deep axils laevis Thorne, 1937 



Lip not separated by deep axils U 



U. Nerve ring surrounding base of corpus .latus (Cobb, 1906) Thome, 1937 

 Nerve ring encircling corpus about one neck width anterior to jixnction 

 with isthmus teres Thorne, 1937 



Other species: 



E. bipapillatus (Stefanski, 191^) Thome, 1937 



E. bisimilis (Thome, 1925) Thome, 1937 



E. compus (Steiner, 1935) Thorne, 1937 



E. diversipapillatus Altherr, 1950 



E. elongatus (de Man, 1880) Thome, 1937 



E. multicinctus (Cobb, 1893) Thorne, 1937 



E. mylakolaimus (Puchs, 1930) Thorne, 1937 



E. nannus Steiner, 1936 



E, paracomutus de Coninck, 19U3 



