Paratylenchidae (Thorne, 1949)
Morphology and Anatomy:
- slender nematodes, up to 0.85mm;
- annulation fine;
- lateral field with two to four lines;
- lip region weakly sclerotized, bluntly rounded or with various shapes from small, lip-like projections near oral aperture;
- stylet length variable (12 to 119 Ám), cone longer than shaft plus knobs;
- procorpus gradually merges into
metacorpus as a
large valvated bulb;
isthmus long, slender;
- posterior bulb distinctly set off;
- monodelphic, prodelphic, vulva near posterior of body.
- spermatheca well-developed, offset from anterior end of
- stylet, if present, weakly developed;
- esophagus reduced;
- spicules slightly curved;
- no caudal alae (except weakly developed in Cacopaurus).
- Similar to females, but with shorter stylet [lacking or very reduced, rudimentary in fourth-stage (dauer) juvenile].
Raski, D.J. 1962. Paratyleiichidae n. fam, with descriptions of fve new
species of Gracilacus n. g. and an emendation of Cacopaurus Thorne, 1943,
Paratylenchus Micoletzky, 1922 and Criconematidae Thorne, 1943. Proc Helmint
Soc. Washington 29:189-207.
Raski & Luc, Rev. Nematol. 10(4):409-444 (1987)
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