Genus Tylencholaimus
de Man, 1876

Definition:  Tylencholaiminae.  Bodies of known species fairly robust, a = 20-30.  Cuticle with prominent radial straie.  Lip region often cap-like.  Spear dorylaimoid, usually about as long as a head-width; spear extensions with small basal knobs.  Oesophagus dorylaimoid, anterior part generally with visible radial muscles, posterior part wider and cylindrical.  The anterior part of subventral gland nuclei are closer to that of the dorsal gland than in most dorylaims.  Ovaries 1 or 2: when one, ususally prodelphic (except in T. zeelandicus).  Spicules dorylaimoid, lateral guiding pieces present.  Testes 2.  Supplements consisting of an adanal pair and a ventral row of 3 or more.  Submedian papillae not observed on the male.

Type species:  Tylencholaimus mirabilis (Butschli, 1873) de Man, 1876
                syn.  Tylenchus mirabilis Buschli, 1873
-Goodey, 1963

Species found:  at:
T. minimus Konza Prairie
T. nanus Konza Prairie, 9-Mile Prairie
T. proximus Konza Prairie, 9-Mile Prairie, Homestead, Haughton Crater
T. stecki Konza Prairie
T. teres Konza Prairie, 9-Mile Prairie