?7- 



3. Corpus of esopha-us with ovoid valvular apparatus 



drymocolus Ruhm, 19^6 



Corpus of esophagus v;ithout ovoid valvular apparatus 

 acris Thome, 19U1 



Genus Beleodorus Thome, 19U1 

 (Key to the species Thome, 19Ul) 



Terminus of female tail acute thylactus Thome, I9UI 



Terminus of female tail clavate clavicaudatus Thome, I9UI 



Genus Neot.ylenchns Steiner, 1931 

 (Key to species after Thome, 19l;l) 



1. Vulva almost terminal obesus Thome, 193U 



Vulva well in front of terminus 2 



2. Posterior uterine branch present 3 



Posterior uterine branch absent 5 



3. Tcil uniformly cylindrical from anus tc bluntly rounded terminus j with 



peg-like terminal process * . . italicus Meyl, 195U 



Tail conoid; without terminal process .,.„ Ij. 



U. Tail length less than 2.0 anal body diameters j uniformly conoid to 



acute teiminus latus Thome, I9UI 



Tail length more than 2.5 anal body diameters; latter 1/5 cylindrical 

 with rounded terminus , . . . thomei Meyl, 195U 



5. Female tails elongate conoid, a= 8-10 6 



Female tails not elongate conoid, a= 15-20 .• 7 



6. Oocytes arranged tandem in ovary acutus Thome, I9UI 



Oocytes massed in ovary . . . copropha^'-us (Goodey, 193^) Thome, 19i4.1 



7. Teiminus acute 8 



Terminus blunt, rounded . . ' 9 



8. Lip region set off by constriction; male with normal spicula and 



spear consobrinus (de Man, I906) Filipjev, I936 



Lip region not set off; male with degenerate spicula and without spear 

 albulbosus Steiner, 1931 



9. Bursa enveloping tail; female tail sub-cylindroid, very blunt 



intermedius (Christie, 1938) Thome, I9UI 



Bursa not enveloping tail; female tail conoid to small, blunt terminus 

 arcuatus Thome, 19U1 



