69. 



Family COWESaiATIDAE Stek. & de Coninck, 1933 

 (Key to the genera after Wieser, 195U) 



1. Spicv-la single-jointed, short or long 2 



Spicula double- jointed 9 



2. Spicula arcuate, short 5 gubernaculLm with caudal apophysis 3 



Spicula elongate; gubemaculum parallel, without caudal apophysis . 6 



3. No teeth in buccal cavity 1; 



With 3 teeth in buccal cavity 5 



U. Cephalic papillae setose, almost as long as the U cephalic setae; 



Cervical region elongate Cervonema Wieser, 19^1; 



syn: Linhonioella Stekhoven 19^0 nee Cobb 1920 

 Cephalic papillae papillose; cervical region not elongate 

 Sabatiera de Rouville, I903 



syn: Parasabatiera de Man, 190? 



5. Cephalic papillae papillose; cuticle differentiated laterally into 

 longitudinal rows of dots Mesonchuijn Cobb, 1920 



■ syn: Pepsonema Cobb, 1920 

 Cephaxic papillae setose, immediatedly in front of cephalic setae; no 

 lateral differentiation of cuticle Vasostoma Wieser, 195U 



6. No teeth in buccal cavity 7 



With 3 teeth in buccal cavity Laimella Cobb, 1920 



syn: Paracomesonia Stekhoven, 19^0 ; 



7 . 10 cephalic setae in one circle ...... Metacomesoma Wieser, 195U 



U cephalic setae in one circle plus one to several circles of 

 subcephalic setae 8 



8. Supplements in male setose or absent Comesoma Bastian, 1865 



Supplements in male chromadoroid Alainionema Cobb, 1920 



9. Cuticle differentiated laterally. . . . Dorylaimopsis Ditlevs'^n, I919 

 No differentiation of lateral dots Xinema Cobb, 1920 



« 



Questionable genera: 



Cynura Cobb, 1920 ( Comes omatidae or Leptolaimidae) 

 Manuolaimus Cobb, 1920 ( Cyatholaimidae or Comesomatidae) 

 Dolichosomatum Allgen, 1951 (a Sabatiera?) 



