Definition: Dorylaiminae. Characterized by dissimilar
tails, female long-filiform, male short and bluntly rounded; cuticle smooth
without longitudinal ridges.
Usually medium-sized species, the majority between
1 and 2 mm. but ranging from less than 1 mm. to 6 mm. Lateral pores
are siad to be mostly absent from cuticle. Head usually narrower
than body and slightly offset; arrangement of papillae as in Dorylaimus.
Spear well developed. Guiding ring appearing single or double, the
fixed anterior ring tends to be less than a head-width from anterior end
of the body. Amphids as in Dorylaimus. Vulva transverse in 4 species,
longitudinal in 3, a round pore in 2 and no data available for the great
majority. Gonads of both sexes as in Dorylaimus. Supplements
either contiguous or somewhat separate from one another with a gap between
the ventral series and the pre-anal pair. Submedian, pre-anal papillae
present in some series and the pre-anal pair. Submedian, pre-anal
papillae present in some species. Pre-rectum of male extending forward
beyond the range of the supplements in 13 species, within the range in
6 but no data available for the majority.
Type species: Mesodorylaimus mesonyctius (Kreis,
1930) Andrassy, 1959
syn. Dorylaimus mesonyctius Kreis, 1930
DNA Sequences Obtained
Species found: at: