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Two New Species of Trichodorus (Nematoda: Dorylaimida) From England

Two New Species of Trichodorus (Nematoda: Dorylaimida) From England TWO NEW SPECIES OF TRICHODORUS (NEMATODA: DORYLAIMIDA) FROM ENGLAND BY D. J. HOOPER Rothamsted Experimental Station, Harpenden, England Trichodorus velatus n. sp., ♂ and ♀ , is from sandy soils growing Sitka spruce seedlings, arable crops and herbaceous plants. The male resembles T. similis Seinhorst, 1963, but its unstriated spicules are stouter with a wider, non cephalated, proximal end; a narrow characteristically bent central area and a distal region with a distinct subventral flange (velum). The female has smaller refractive thickenings at the vulva than T. similis and resembles T. viruliferus Hooper, 1963, but the refractive thickenings are more obvious and the vaginal cervix has more pronounced lobes in lateral view. T. variopapillatus n. sp., ♂ and ♀ , is from woodland, wet, sandy soil associated with the roots of Elder (Sambucus nigra L.). Some males have two, others three, ventromedian cervical papillae and the unstriated spicules are of a similar shape to T. similis but much thinner. The female has conspicuous refractive blocks at the vulva and the vaginal region is rounded. During the past six years several different populations of a Trichodorus sp. have been examined from various sites in Eastern England. Although the males resemble http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematologica Brill

Two New Species of Trichodorus (Nematoda: Dorylaimida) From England

Nematologica , Volume 18 (1): 7 – Jan 1, 1972

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2596
eISSN
1875-2926
DOI
10.1163/187529272X00250
Publisher site
See Article on Publisher Site

Abstract

TWO NEW SPECIES OF TRICHODORUS (NEMATODA: DORYLAIMIDA) FROM ENGLAND BY D. J. HOOPER Rothamsted Experimental Station, Harpenden, England Trichodorus velatus n. sp., ♂ and ♀ , is from sandy soils growing Sitka spruce seedlings, arable crops and herbaceous plants. The male resembles T. similis Seinhorst, 1963, but its unstriated spicules are stouter with a wider, non cephalated, proximal end; a narrow characteristically bent central area and a distal region with a distinct subventral flange (velum). The female has smaller refractive thickenings at the vulva than T. similis and resembles T. viruliferus Hooper, 1963, but the refractive thickenings are more obvious and the vaginal cervix has more pronounced lobes in lateral view. T. variopapillatus n. sp., ♂ and ♀ , is from woodland, wet, sandy soil associated with the roots of Elder (Sambucus nigra L.). Some males have two, others three, ventromedian cervical papillae and the unstriated spicules are of a similar shape to T. similis but much thinner. The female has conspicuous refractive blocks at the vulva and the vaginal region is rounded. During the past six years several different populations of a Trichodorus sp. have been examined from various sites in Eastern England. Although the males resemble

Journal

NematologicaBrill

Published: Jan 1, 1972

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