Rev 01/10/2020


          Pararotylenchinae Baldwin & Bell, 1981


Morphology and Anatomy:

The subfamily Pararotylenchinae is similar to certain other Hoplolaimidae, such as Rotylenchinae, with respect to most characters including the short tail,
the position of the phasmids near the anus, and the relatively great distance of the dorsal gland orifice from the base of the stylet knobs.

Unlike other Hoplolaimidae, the esophageal glands of Pararotylenchinae form a basal bulb similar to that of Tylenchorhynchidae but; other characters do not resemble Tylencborhynchidae.

 [Ref: Baldwin, J.G. and A.H. Bell, 1981. Pararotylenchus n. gen. (Pararotylenchinae n. subfam., Hoplolaimidae) with Six New Species and Two New Combinations. J. Nematology 13:111-128.

Note that the separation of Rotylenchus and Pararotylenchus was based on several factors, peraps the most important being that the esophageal glands in Pararotylenchus are enclosed in a terminal bulb rather that ovrlapping the intestine (Baldwin and Bell, 1981).  Brzeski and Choi (1998) rejected the importance of that distinction and proposed the synonymization of Rotylenchus and Pararotylenchulus.

Brzeski, M.W, and Choi, Y.E. 1998. Synonymisation of Rotylenchus Filipjev, 1936 and Pararotylenchus Baldwin & Bell, 1981 (Nematoda: Hoplolaimidae). Nematologica 44: 45-48.

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