Genus Amphidelus
Thorne, 1939
Photo Gallery- Haughton Crater

Definition: Alaimoidea.  Amphid apertures large, transverse slits or crescents.  Amphids broad, deeper than wide; sometimes elongate-conoid.  Oesophagus narrow but expanding to terminal swelling.  Female gonads paired, opposed, reflexed (except in A. dolichurus and A. pusillus).  Spicules short, somewhat sigmoid in A. lemani.

Type species: Amphidelus lissus Thorne, 1939

-Goodey, 1963

Species found:   at:
A. dolichurus Konza Prairie
A. hyans Konza Prairie
A. pusillus 9-Mile Prairie
A. studeri Haughton Crater