Genus Takamangai
Yeates, 1967
Syn.: Thonus Thorne, 1974
Photo Gallery- Homestead Nat'l Monument
Photo Gallery- Forensic Nematology

Dorylaiminae. Moderate sized nematodes.  Lips distinct.  Lip region set off by constriction.  Cuticle with faint longitudinal markings; sub-cuticle finely annulate.  Amphidial chamber not divided, without support.  Oral aperture round.  Spear axial, aperture more than half its length.  Guiding ring without sclerotised fixed ring, anterior margin plicate.  Excretory pore present.  Slender anterior portion of oesophagus without swellings; basal bulb dark, glandular.  Oesophago-intestinal valve present; both oesophago-intestinal glands and oesophago-intestinal disc absent.  Vulva a transverse slit, lips cuticularised.  Tail short.
Type species:  Takamangai waenga Yeates, 1967
(Description- Yeates, 1967)

Qudsianematidae, Qudsianematinae.  Small nematodes, from 0.4 to 2.7 mm, but usually close to 1 mm.  Cuticle moderately thick, smooth.  Head more or less offset, rarely continuous with adjacent neck, lips separate.  Amphids stirrup-shaped.  Spear of middle length, 8 to 30 um, nearly as long as or somewhat (to 1.5 times) longer than cephalic diameter;  aperture 1/3 or 1/2 of spear length.  Guiding ring thin, single.  Oesophagus enlarged near middle.  Female gonads paired, vulva transverse, sclerotized. in 47-68% of body length.  Males fairly frequent.  Spicula dorylaimid, spermatozoa spindle-shaped.  Ventromedian supplements spaced, 3 to 16 (in most cases less than 10).  Percloacal space present.  Tails similar in both sexes, conoid-rounded or bluntly rounded, shorter or a little longer than anal body width, often with blister-like structures.
Type species:  Takamangai waenga Yeates, 1967
     Takamangai may be characterized by the combination of the following features:  lips simple, guiding ring thin, vulva transverse, supplements spaced and restricted in number, tail short and rounded.
     In 1974 Thorne suggested a new genus, Thonus, for short- and round-tailed representatives of "Eudorylaimus-like" nematodes.  The type species, Thonus nothus (Thorne & Swanger, 1936) Thorne, 1974 perfectly corresponds, however, to the criteria of Takamangai Yeates, 1967 so that we may not vacillate to synonymize the genus of Thorne with that of Yeates.
     Yeates has not mention the grammatic gender of the Maori word "Takamangai".  Since the type species, waenga (a Maori word as well) is terminating in an "-a" I consider it as feminin.
     The species of Takamangai are terrestrial in habit.  Although they occur throughout five continents, they predominantly inhabit the Palearctic.  Europe is represented by 10, Asia by 16, Africa by 3, North America by 12 and Australia by 2 species.  It is interesting that none of them has been recorded from South America hitherto.
(Description- Andrássy, 1991)

Species found:   at:
T. circulifera Konza Prairie, Haughton Crater, Forensics
T. confusa Konza Prairie
T. cylindricus Konza Prairie, Haughton Crater, Forensics
T. elegans Konza Prairie, 9-Mile Prairie
T. major Konza Prairie
T. nothus Konza Prairie
T. saccata Konza Prairie, Forensics, South Dakota