Two known and one new species of Draconematidae and Epsilonematidae (Nematoda, Desmodorida) from the White Sea, North Russiaстатья

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Дата последнего поиска статьи во внешних источниках: 19 июля 2016 г.

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[1] Two known and one new species of draconematidae and epsilonematidae (nematoda, desmodorida) from the white sea, north russia / M. A. Fedyaeva, T. V. Neretina, O. P. Konovalova, A. V. Tchesunov // Zootaxa. — 2016. — Vol. 4121, no. 4. — P. 383–411. Morphological descriptions of three “walking nematode” species found for the first time in the White Sea are presented. Draconema ophicephalum (Claparède, 1863) (Draconematidae) and Epsilonema steineri Chitwood, 1935 (Epsilonematidae) both known on original insufficient material of only females are redescribed and problems of their taxonomic identification as well as species compositions of respective genera are discussed. The new species Prochaetosoma marisalbi sp.n. (Draconematidae) differs from other Prochaetosoma species except P. longicapitatum (Allgén, 1935) by that pharyngeal bulb lumen is not cuticularised, from P. longicapitatum by shape of body and rostrum, greater number of cephalic adhesive tubes, and from P. maertensi Decraemer, 1989 by relatively longer tail, lesser number of anterior adhesive tubes and longer spicules, besides lack of cuticular thickening in the pharyngeal bulb. Draconema hoonsooi, D. youngeouni, P.rochaetosoma beomseomense, P. brevicaudatum, P. byungilli, P. cracense, P. saheungi, P. sujungi, P. supseomense erected by Rho & Min (2011) are considered as unavailable species while Prochaetosoma arcticum, P. lugubre and Epsilonema cygnoides are assumed as species inquirenda. On phylogenetic tree based on 18S rRNA gene, all the three White Sea species adjoin to unidentified species of their respective genera. [ DOI ]

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