<'i6. 



Superfamily AXOwOLAIKOIDEA Chit, and Chit., 1937 

 (Key to the families after Chitwood, 1951) 



Amphids unispiral, spiral to shephard's crook, rarely broken circle; 

 cuticle not punctate or minutely pijnctate, usually rather smooth; 

 gubemaculum usually with posterior apophyses 



AXONOLAE-IDAR Stekhoven & de Coninck, 1933 ?."6 



Amphids multispiral; cuticle often having minute to moderately coarse 

 punctations. Stoma cylindroid with three sclerotized points at an- 

 terior end or reduced; gubemaculum with or without a posterior apo- 

 physis 

 CCMESCMATIDAE (Stekhoven <k de Coninck, 19^3) ^^.89 



Family AXONOLAffilDAE Stekhoven & de Coninck, 1933 

 (Key to the subfamilies after Chitwood, 1951) 



1. Stoma inconspicuous or cylindroid 2 



Stoma conoid or cylindrical 3 



2. Amphids located on cuticular plaques. . . DIPLOPELTINAE Rauther, 1930 P. 8? 

 Amphids much elongated, hook-like; plaque absent 

 CAMPYLAIfilNAE Chit. & Chit., 1937 P. 87 



3. Stoma conoid, stomatorhabdioris thick 



AXONOUWINAE Miccletzky, 192U P.86 



Stoma cylindrical, stomatorhabdicn's thin 

 CYLINDROLAIMINAE Micoletzky, 1922 P. 83 



Subfamily AXONOLAIMINAE 

 (Key to the genera from Chitwood, 1951) 



1. Cephalic setae absent Margonema Cobb, 1920 



Cephalic setae present 2 



2. Amphids circular Apodontium Cobb, 1920 



Amphids spiral to shepherd's crook 3 



3. Esophagus rather clavate, six well-developed, eversible odontia 



Odontophora Butschli, 137U 



Esophagus more elongate; prorhabdions not clearly eversible as odontia 

 h 



k. Female with one ovary Synodontium Cobb, 1920 



Female with two ovaries Axonolaimus- de Man, 1889 



