Published December 31, 1971 | Version v1
Taxonomic treatment Open

Heterocephalobus elongatus Andrassy 1967

Creators

  • 1. Department of Hematology, Agricultural University, Wageningen, The Netherlands

Description

Heterocephalobus elongatus (de Man, 1880) Andrâssy, 1967.

Dimensions of ten females: L = 0.61-0.82 mm; a = 27-33; b = 3.7-4.2; c = 12-16; V = 62- 64; G ^ = 11-16; G ^ = 11-17; G2 = 4 - 5.

Two males: L = 0.64- 0.85 mm; a = 32 -35; b = 3.5 -4.4; c = 16- 18; T = 4 1 + 9 - 5 6 + 1 0.

Annulation of cuticle shallow and rather indistinct, measuring 1.7 JJL in middle of body. Lateral field with two wings (three lateral lines). In the female the posterior uterus seems to bear some gonad tissue; the total length of the posterior gonad is about 1.3 body widths. The postvulval part of the anterior gonad occupies 31- 56 % of vulva-anus distance. The postanal pulvillus is conspicuous. The rectum is widened anteriorly. Tail length equal to 3. 1-4.6 anal body diameters.

Male: Spicules 24 \i long. Two pre-anal subventral papillae, 1.4 and 4 anal body widths from the anus. A pair of adanal papillae; a subventral pair nearly halfway the tail (37-40 %); a lateral papilla at the same level (phasmid?); a subventral pair (in one specimen perhaps two) just before the terminus; a lateral pair at nearly the same level, and a lateral pair midway between the two mentioned.

Nerve ring and excretory pore opposite posterior end of corpus, at 63 - 68 % of neck length. Directly behind the excretory pore there is a narrow but distinct hemizonid.

Samples 3, 5, 7, 8, 10, 20, 21, 23, 25, 27, 31, 33, 37, 39, 44, 48, 52, 55, and 62.

Notes

Published as part of P. A. A. LOOF, 1971, FREELIVING AND PLANT PARASITIC NEMATODES FROM SPITZBERGEN, COLLECTED BY MR. H. VAN ROSSEN, pp. 1-86 in Mededelingen Landbouwhogeschool Wageningen 71 on pages 26-27, DOI: 10.5281/zenodo.8152982

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Linked records

Additional details

Biodiversity

Family
Cephalobidae
Genus
Heterocephalobus
Kingdom
Animalia
Order
Rhabditida
Phylum
Nematoda
Scientific name authorship
Andrassy
Species
elongatus
Taxon rank
species
Taxonomic concept label
Heterocephalobus elongatus Andrassy, 1967 sec. A., 1971