Rev 5/91
Tylenchina
Tylenchina
Tylenchoidea
Tylenchidae
Atylenchinae (Skarbilovich, 1959)
Synonyms:
Antarctenchinae (Spaull, 1972)
Pleurotylenchinae (Andrássy, 1976)
Aglenchinae (Siddiqui & Khan, 1983)
Undivided laterally elongated front plate of the head with large, roundish
amphid openings; stylet with about equal parts, vulva covered by
lateral or longitudinal flaps; males often with large hypoptygmata.
Males present in all genera, but most Coslenchus species appear to be
parthenogenetic. Bursa well developed in Antarctenchus, Aglenchus, and
Coslenchus, very poorly developed in Atylenchus and Pleurotylenchus. In
Atylenchus, Antarctenchus, and Coslenchus poslonicus the cloacal opening
is provided with large hypoptygmata; in Aglenchus and remaining Coslenchus
species, a cloacal tube is present. Tail long, attenuated, tail tip
setose, acute or finely rounded. Phasmids ad-vulval or post-vulval in
Aglenchus and Coslenchus, on the tail in Antarctenchus.
[Ref: Geraert & Raski, Rev. Nematol. 10(2):143-161 (1987).]
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