Affiliation:
1. A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, ul. Palchevskogo 17, Vladivostok 690041, Russia
Abstract
To date, a total of 23 valid species of heteronemerteans belonging to 15 genera have been recorded in Antarctic and Subantarctic waters. The ribbon worm Heteronemertes longifissa (Hubrecht, 1887) is the only heteronemertean species reported to have bipolar distribution, but this statement is doubtful. The phylogenetic relationships of H. longifissa to other heteronemerteans remain uncertain. A genetic analysis of specimens from Antarctica has shown that the name H. longifissa refers to two sibling species with an uncorrected p-distance of 5.3% in COI. These species differ in body color: one is whitish, and the other is grayish-pink. The species with the whitish body has been reliably identified from off the Norway coast (as Cerebratulus sp. NemBar1383 (BOLD: ACM5920)), i.e., it has a bipolar distribution. A molecular phylogenetic analysis of Lineidae based on five gene markers (COI, 16S, 18S, 28S, and histone H3) has shown the genus Heteronemertes to belong to Lineage D of Clade 2 sensu Kajihara et al., 2022 (crown Lineidae). The phylogenetic positions of four more species of unidentified lineids are currently under discussion.
Funder
Russian Science Foundation
Subject
Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry
Reference59 articles.
1. An updated classification of the phylum Nemertea;Chernyshev;Invertebr. Zool.,2021
2. Descriptions of some new species of Annelida from Kerguelen’s Island;McIntosh;Ann. Mag. Nat. Hist.,1876
3. Südgeorgische und andere exotische Nemertinen;Zool. Jahrb. Abt. Syst. Geog. Biol. Tiere,1893
4. Note préliminaire sur les Némertiens recueillis par l’expédition antarctique française du Dr Charcot;Joubin;Bull. Mus. Natl. Hist. Nat.,1905
5. Joubin, L. (1908). Expédition Antarctique Francaise 1903–1905; Vers et Brachiopodes, Masson.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献