Bythotrephes arcticus Lilljeborg 1901

• Main Author: Korovchinsky, Nikolai M.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Branchiopoda; Diplostraca; Cercopagidae; Bythotrephes; Bythotrephes arcticus; Karesuando; kola peninsula; Norrbotten
• Online Access: https://doi.org/10.5281/zenodo.6085645; http://treatment.plazi.org/id/D57457189B4CFFEDFF03FC4EFAC0FC23

Bythotrephes arcticus Lilljeborg, 1901 (Figs. 1–6) Bythotrephes longimanus Leydig, 1860: Stenroos 1897: 67 –68 (partim); Ekman 1904: 28 –29. Bythotrephes longimanus var. arcticus Lilljeborg, 1901: Lilljeborg 1901: 612 –613, Tab. 81, Figs. 9 –12; Mordukhai-Boltovskoi & Rivier 1987: 152, Fig. 44A-B; Rivier 1998: 173, Fig. 215a, b. Bythotrephes longimanus var. arctica Lilljeborg: Levander 1901: 24. Bythotrephes arctica Lilljeborg: Sars 1903: 186, Pl. 8, fig. 6. Bythotrephes longimanus arcticus Lilljeborg: Ischreyt 1930: 321, Fig. 13d; Manuilova 1964: 292–293, Fig. 160–6; Vekhov 1981: 74, Fig. 2; 1987: 28, Fig. 1. Bythotrephes crassicauda Lilljeborg: Ischreyt 1934: 277, Abb. 16d; 1937: 56; 1939: 127. Bythotrephes longimanus crassicaudus Lilljeborg: Litvinchuk 2001: 129. Bythotrephes crassicaudus Lilljeborg, 1890: Litvinchuk 2002: 84–86, 118–119, 127–128, Figs. 8, 10, 35, 36, 41B, 42B; 2007: 191–192, Figs. 3 B, 4B; Litvinchuk & Litvinchuk 2016: 67–73, Fig. 9. Type material. Syntypes. All specimens certainly used by Lilljeborg (1901) for investigation and description of B. arcticus and labeled “ B. crassicauda ” or “ B. longimanus arcticus ” can be considered as belonging to the type series of the taxon (ICZN, 72.4.1., 72.5.) and named syntypes (ICZN, 73.2.). Lectotype . A parthenogenetic female with body length 4.34 mm (Karesuando, Norrbotten, Sweden, 30.7.1875, collected by Lilljeborg, sample N 2669) deposited in a tube with alcohol in the Museum of Evolution of Uppsala University (№ UPSZTY 163492). Paralectotypes are deposited in the same Museum: slides № UPSZTY 2730, 2826–2830; samples № UPSZTY 163493– 163505. Material examined. Russia: Kola Peninsula (Murmansk region): 1) A slide (MEUU, N 633c with specimens from sample N 2318) labeled “ Kola Penins., Karabella, 31/7 77, Sandeb. exp., Bythotrephes crassicauda n. sp. glacialis ” (the last name has probably been crossed out by Lilljeborg) (in a Museum catalog this material is designated as “ B. longimanus arcticus, syntypes ”), 2 ad, dried ( paralectotypes) ...