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Three New Rhabditida (Nematoda) From New Zealand Dune Sands

Three New Rhabditida (Nematoda) From New Zealand Dune Sands THREE NEW RHABDITIDA (NEMATODA) FROM NEW ZEALAND DUNE SANDS BY G. W. YEATES Department of Zoology, University of Canterbury, Christchurch, New Zealand 1) Mononchoider potohikus n. sp. (Diplogasteridae) is distinguished from other species of the genus by its short tail (c' ≃ 0.9 in mature specimens); the first stage juveniles are rhabditoid (in that oesophagus lacks distinct tri-radiate valve in median bulb), subsequent stages diplogasteroid; prerectum present; tuboid supplements present in males. Allometric growth coefficients are given for post-embryonic development, based on a culture population. Mesorhabditís littoralis n. sp. (Rhabditidae) females are morphologically similar to those of M labiata (Völk, 1950) but may be distinguished by the possession of oesophageal bulbs of similar size; males have an apparently leptoderan bursa. Panagrolaimus australis n. sp. (Panagrolaimidae) is closest to P. rigidus (Schnei- der, 1866) but is readily distinguished by the location of phasmids near the cloaca. The type locality for the three species is Himatangi Beach, Manawatu, New Zealand, in dune sand under Ammophila arenaria (L.) Link. Eight Acrobelinae have previously been described from New Zealand dune sands (Yeates, 1967). In this paper three more Rhabditidae are described, the ecology of two of them (Mononchoides potohiku.r n. sp. as http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Three New Rhabditida (Nematoda) From New Zealand Dune Sands

Yeates, G.W.
Nematologica , Volume 15 (1): 14 – Jan 1, 1969
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529269X00155
Publisher site
See Article on Publisher Site

Abstract

THREE NEW RHABDITIDA (NEMATODA) FROM NEW ZEALAND DUNE SANDS BY G. W. YEATES Department of Zoology, University of Canterbury, Christchurch, New Zealand 1) Mononchoider potohikus n. sp. (Diplogasteridae) is distinguished from other species of the genus by its short tail (c' ≃ 0.9 in mature specimens); the first stage juveniles are rhabditoid (in that oesophagus lacks distinct tri-radiate valve in median bulb), subsequent stages diplogasteroid; prerectum present; tuboid supplements present in males. Allometric growth coefficients are given for post-embryonic development, based on a culture population. Mesorhabditís littoralis n. sp. (Rhabditidae) females are morphologically similar to those of M labiata (Völk, 1950) but may be distinguished by the possession of oesophageal bulbs of similar size; males have an apparently leptoderan bursa. Panagrolaimus australis n. sp. (Panagrolaimidae) is closest to P. rigidus (Schnei- der, 1866) but is readily distinguished by the location of phasmids near the cloaca. The type locality for the three species is Himatangi Beach, Manawatu, New Zealand, in dune sand under Ammophila arenaria (L.) Link. Eight Acrobelinae have previously been described from New Zealand dune sands (Yeates, 1967). In this paper three more Rhabditidae are described, the ecology of two of them (Mononchoides potohiku.r n. sp. as

Journal

Nematologica – Brill

Published: Jan 1, 1969

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