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Issue: Vol. 4232 No. 1: 15 Feb. 2017
Type: Article
Published: 2017-02-15
DOI: 10.11646/zootaxa.4232.1.4
Page range: 58–70
Abstract views: 81
PDF downloaded: 2

Revision of the genus Parasphaerolaimus (Nematoda: Sphaerolaimidae) with description of new species

A.V. Zhirmunsky Institute of Marine Biology, National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, ul. Paltchevskogo 17, Vladivostok, 690041, Russia Far Eastern Federal University, ul. Sukhanova 8, Vladivostok, 690050, Russia.
A.V. Zhirmunsky Institute of Marine Biology, National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, ul. Paltchevskogo 17, Vladivostok, 690041, Russia.
A.V. Zhirmunsky Institute of Marine Biology, National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, ul. Paltchevskogo 17, Vladivostok, 690041, Russia.
Institute of Ecology and Biological Resources, Hanoi, Vietnam.
Nematoda free-living nematodes key to species taxonomy SEM Vietnam

Abstract

The family Sphaerolaimidae Filipjev, 1918 includes nematodes that are characterized by the finely striated cuticle, round amphids, broad buccal cavity with longitudinal ribs, and single anterior ovary in females. Parasphaerolaimus species from this family are found in intertidal and subtidal sediments and have also been reported from mangroves and estuaries. Parasphaerolaimus pilosus sp. n. is characterized by the moderately plump body, presence of lateral alae, long cervical setae, small amphids in males, and relatively short spicules. As a result of a comprehensive evaluation of species descriptions, eight species in the genus Parasphaerolaimus are recognized valid, and an identification key to species level is provided.

 

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