90. 



Superf?i)tiiy D^Sl-iOSCOLECOID'iTl Stekhoven, 1935 

 (Key to the families after Chitwood, L95l) 



1. Body generally hirsute , . .GRELTF'ISLLIDAE (Filipjev, 1929) 



(Contains a single genus Greeffiella (Oreaf, I869) Cobb, 1922 

 Body not generally hirsute DESMOSCOL^CIUAE Southern, I9II1 ?.90 



Family DF^IOSCOLF.CIDAE Southern, I9IU 

 (Key to the families after Chitwood, 1951) 



1. l/ith opaoue concretion annules 2 



Without opaoue concretion annules .... . Fudesn^oscolex Steiner, I9I6 



2. Concretion annules 12-22 Desmoscolex Claparede, I863 



Concretion annules 29-76 Tricona Cobb, I89I4 



Superfamily CHROPlADOROIDEA de Coninck & Stekhoven, 1933 

 (Key to the families from Chit. & Chit., 1950) 



1. Esophago-intestinal valve very small j cuticular punctation coarse 



CHRCMADORIDAE Filipjev, 1917 P. 90 



Esophago-intestinal valve well-developed 2 



2. Gubemaculum simple MICROLAIKIDAE de Coninck &l Stek., 1933 P. 93 



(Contains a single subfamily, hICROLAIlnlNAE) 

 Gubemaculvim complicated 3 



3. Cuticular punctations fine, amphids 1-2 spiral 



TRIPYLOIDIDAE de Coninck & Stek., 1933 P. 93 



(Contains a single subfamily, TRIPLOIDINAE) 

 Cuticular pvnctations coarse, amphids unispiral to multispiral 

 CYATH0LAB1IDAE de Coninck & Stek., 1933 P.9I4 



Family CHRCJ'IADORIDAE Filipjev, 1917 

 (Key to the subfamilies after Wieser, 195U) 



Amphids indistinct, if distinct then slit-Jike. (Actii:ioner,ia') 



". ". .CHRa-lADUKINAE p. 01 



Amphids distinct, spiral. . . .ETHMOLAllsINAE Filipj. & Stekhoven, I9I1I e.91 



