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Descriptions of species of Stegelleta Thorne, 1938 (Nematoda, Rhabditida, Cephalobidae) from California, New Zealand and Senegal, and a revision of the genus
Swedish Museum of Natural History, Department of Zoology.
Swedish Museum of Natural History, Department of Zoology.
2014 (English)In: European Journal of Taxonomy, ISSN 2118-9773, Vol. 87, 1-19 p.Article in journal (Refereed) Published
Abstract [en]

Populations of Stegelleta are described from California, New Zealand and Senegal. An amphimictic population from California is identified as belonging to S. incisa and compared with type specimens from Utah and an amphimictic population from Italy. One population from New Zealand is close to S. incisa but considered to represent a new species, Stegelleta laterocornuta sp. nov. It is particularly characterised by a 379–512 μm long body in females and 365–476 μm in males; cuticle divided into 16 rows of blocks at midbody (excluding lateral field); lateral field with four incisures; three pairs of asymmetrical lips, U-shaped primary axils without guarding processes, each lip asymmetrically rectangular with a smooth margin, only lateral lips have slender acute tines; three labial probolae, bifurcated at half of their length; vulva without flap; spermatheca 17–31 μm long; postuterine sac 7–24 μm long; spicules 21.5–23.5 μm long. Other specimens from New Zealand are identified as belonging to S. tuarua. A parthenogenetic population from Senegal is identified as belonging to S. ophioglossa and compared with type specimens from Mongolia and records of several other populations of S. ophioglossa. The generic diagnosis is emended and a key to the species of Stegelleta is provided.

Place, publisher, year, edition, pages
2014. Vol. 87, 1-19 p.
Keyword [en]
Morphology, new species, SEM, Stegelleta, taxonomy.
National Category
Zoology
Research subject
Diversity of life
Identifiers
URN: urn:nbn:se:nrm:diva-583DOI: 10.5852/ejt.2014.87OAI: oai:DiVA.org:nrm-583DiVA: diva2:740114
Available from: 2014-08-22 Created: 2014-08-22 Last updated: 2014-08-22Bibliographically approved

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Publisher's full texthttp://www.europeanjournaloftaxonomy.eu/index.php/ejt/article/view/208

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Boström, SvenHolovachov, Oleksandr
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