97. 



Superfamily DESI^ODOROIDEA Steiner, 1927 

 (Key to the families after Cnitwood, 1951) 



1. Glandular setae in subventral rows, . . . DliACONMATIDAE Steiner, 1930 



(Contains one genus, Draconema Cobb, 1912) 

 Glandular setae absent 2 



2. Body epsilonoid, ambulatory bristles pi-esent 



EPSILONEf-ATIDAE Steiner, 1927 '".97 



Body not epsilonoid, ambulatory bristles absent 

 DESMODORIDAE Micoletzky, 192U P-97 



Family DESMODORIDAE Micoletzky, 192U 

 (Key to the subfamilies after Chitwood, 19^1) 



1. Amphids minute, slit-like STILBONEMATINAE Chitwood, 1936 P.'^'B 



Amphids spiral or circular, not slit-like 2 



2. Helmet present 3 



Helmet absent RICHTERSIINAE Cobb, 1933 ^'•93 



3. Dorsal tooth present ., U 



Dorsal tooth absent CEFiAI'40Nli>lATINAE (Cobb, 1933) ^-98 



h. Amphids circular MOI^jOFOSTHIINAE Filipjev, 193U P'93 



Amphids spiral DESr-^ODORINAE Micoletzky, 192U P-lOO 



Family EPSILONEMATIDAE Steiner, 1927 



1. Ambulatory setae absent; amphids crescentic . Epsilonella Steiner, 1930 

 Ambulatory setae present; amphids circular or monospiral 2 



2. Oesophagus with median and cardiac bulbs. . Metepsilonema Steiner, 1927 

 Oesophagus with cardiac bulb only 3 



3. Annules 80-112 j ambulatory setae slender, falcate 



Bathyepsilonema Steiner, 1927 



Annules ll4ii-192; ambvilatory setae straight or slightly arcuate. . . h 



U. Body cylindroid, if crooked faintly so. . Archepsilonema Steiner, 1927 

 Body epsilon-like, i.e. body arches well developed .... 5 



5. Cuticular annules homogeneous in structure 

 Prochaetosoma Baylis & Paubney, 1926 



syn: Rhabdogaster Metsch.,1867 

 Cuticular annules not homogeneous in structure 6 



6. "Axial" part of the cuticular annules hollow ("frame rings") 



Epsiloneina Steiner, 1927 



"Axial" part of the cuticular annules vacuolated, etc. 

 Epsilonoides Steiner, 1931 



