Three new species of Mesacanthion Filipjev, 1927 (Nematoda: Thoracostomopsidae) from Argentine coasts
نویسندگان
چکیده
Three new species of Mesacanthion Filipjev, 1927 were found along Patagonian coasts (Argentina). bifidum sp. nov. is characterized by short labial and cephalic setae, onchia equal size, spicule arcuate, gubernaculum with caudal apophysis, ending in two teeth. The related to M. virile (Ditlevsen, 1930) De Coninck & Schuurmans Stekhoven, 1933. However, the spicules both are different shape. longigubernaculum its long slender body, striated cuticle, relatively cervical sizes, amphidial fovea lentil-shaped, surrounding spicule, tail conical-cylindrical terminal setae. sanantoniensis stout pouch-shaped, dorsal conical without Following key Jeong et al. (2019), last pali Wieser, 1959 longissimesetosum 1953, so we provide a differentiate four species.
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ژورنال
عنوان ژورنال: European journal of taxonomy
سال: 2021
ISSN: ['2118-9773']
DOI: https://doi.org/10.5852/ejt.2021.787.1611