Alonopsis elongata Sars 1861

• Main Authors: Sinev, Artem Y., Atroschenko, Margarita M.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Branchiopoda; Diplostraca; Eurycercidae; Alonopsis; Alonopsis elongata; White Sea; Murmansk; Norway; Khibiny; Krugloe; karelia*
• Online Access: https://zenodo.org/record/5671945; https://doi.org/10.5281/zenodo.5671945

Alonopsis elongata ( Sars, 1861) Leydig, 1860: 219–221, Pl. 9: figs 66–67 (Lynceus macrourus); Sars, 1861: 161 (Alona); Schoedler, 1863: 33 (Acroperus intermedius); Müller, 1867: 170–171, Pl. 4: fig. 28 (elongata); Lilljeborg, 1901: 434–440, Pl. 65: figs 5–20; Smirnov, 1966: 114–134, figs 1–10 (Acroperus); 1971: 413–415, figs 500–510 (Acroperus); Flössner, 1972: 335–339, fig. 124 (Acroperus); Negrea, 1983: 304–306, fig. 124; Flössner, 2000: 335–339, fig. 124. Type locality. Lake Sognsvand (now Songsvann), the vicinity of Oslo, Norway. Possible type material. Tube GOS F 12424; slide GOS F 9045 (locality is not specified, both labelled just as “ Norway ”, which is typical for material studied by Sars at this time), Zoological Museum of Oslo University, Norway. Material studied: several specimens from the type locality, 0 9.2003, coll. A.Y. Sinev; over 100 parthenogenetic females, numerous ephippial females and males from Russia, Murmansk Area, Khibiny Mountains, Lake Malyi Vud'yavr, 11.08. 2000, coll. A.Y. Sinev; over 50 parthenogenetic females from Russia, Karelia Republic, vicinity of Moscow State University White Sea Biological Station, lake Krugloe, 16.07. 2008, coll. A.Y. Sinev; over 50 parthenogenetic females from Russia, Yaroslavl Area, Uglich Reservoir, 23.07. 1962, coll. N. N. Smirnov, personal collection of A.A. Kotov (Severtsov Institute of Ecology and Evolution, Moscow, Russia), AAK- 1999 -090; 12 females from Russia, Tomsk Area, Lake Bol'shoe Purul'do, near locality Kharsk, coll. A. A. Kotov, personal collection of A.A. Kotov (Severtsov Institute of Ecology and Evolution, Moscow, Russia), AAK 2005 - 279. Description. Parthenogenetic female. Body (Fig. 1 A–D, 2 A, C) height-length ratio 0.61–0.65. Valves (Fig. 1 E, 2 D), as for genus. Head typical of the genus, head shield (Fig. 3 C) with broadly rounded anterior margin, with no defined rostrum. Head pores as for genus (Fig. 2 B, 3 C), IP/PP ratio about 1.3 –2.0 in adult. Labrum (Fig. 4 A), thorax, abdomen and postabdomen (Fig. 3 A–B, E–G) as for ...