28. 



Family CRICONmATIDAE Thome, 19Jb3 (defined Thorne, 19h9) 

 (Key to the subfamilies modified from Chitwood, 1950) 



1. Cuticular striations interupted by 8 or nore lateral incisures » » . 2 

 Cuticular striations not interupted laterally by incisures 

 CRIC0NH4ATIME Taylor, 1936 i\?C 



2. Cuticle finely annulated; females minute, elongate or short and thick 



PARATYLENCHINAE Thorne, 19U9 P. 23 



Cuticle coarsely annulated; both sexes of moderate size, very elon- 

 gate, eel-shaped 



DOLICHODORINAE Chitwood, 1950 P.2C 



Subfamily CRICOMH^iATINAE Taylor, 1936 

 (Key to the genera) 



1. Mature female retaining last moltj body annules not retrose .... 2 

 Mature female not retaining last molt; body anniiles retrose .... 3 



2. Knobs of stylet with anteriorly directed processes 



Hemicriconemoides Chit. & Birchfield, 1957 P. 30 



Knobs of stylet with posteriorly sloping processes 



Hemicycliophora de Man, 1921 P.?9 



3. Cuticular spines or scales present in adults 



Criconema Hoftnanner & Menzel, 19lU P. 31 



Cuticular spines or scales not present in adults 

 Criconemoides Taylor, 1936 P. 33 



Subfamily PARATYLENCHINAE Thome, 19U9 

 (Key to the genera) 



1. Female body obese, swollen; male with adanal bursa 



Cacopauius Thome, 19U3 P. 35 



Feraale body not swollen or distorted; bursa absent in male 

 Paratylenchus Micoletzky. 1922 P. 36 



Other genera: 



Macropos th onia annulata, female unknown, appears more like males 

 of priconematid genera. 



Subfamily DOLICHODORINAE Chitwood, 1950 

 (Key to the genera) 



Esophageal glands lying free in body cavity, overlapping the intest- 

 ine; male with adanal caudal alae Belonolaimus Steiner, 19U9 P.35 



Esophageal glands enclosed in terminal bulb, not overlapping the 



intestine; male with terminal caudal alae . . .Dolichodorus Cobb, 19lU P«35 



