Alona affinis Leydig 1860

• Main Author: Sinev, Artem Yu
• Format: Text
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Branchiopoda; Diplostraca; Alona; Alona affinis; Hoek; Murmansk; Nizhnee; White Sea
• Online Access: https://dx.doi.org/10.5281/zenodo.6224919; https://zenodo.org/record/6224919

Alona affinis (Leydig, 1860) Baird, 1843: 92–93, pl. III, fig. 9–11 ( quadrangularis ); Lievin, 1848: 40, Taf. X, Fig. 6–7 ( quadrangularis ); Leydig, 1860: 233, Taf. IX, Fig. 68–69 ( Lynceus ); Shoedler, 1862: 18–19, Taf. I, Fig. 17–22 ( spinifera ), 1863: 18–19, Taf. I, Fig. 17–22 ( spinifera ); P. E. Müller, 1867: 175–176, tab. III, fig. 22–23, tab. IV, fig. 1–2 ( oblonga ); Stingelin, 1895: 244–246, pl. VII, fig. 32–33; Lilljeborg, 1900: 454–461, tab. LXVI, fig. 18–21, tab. LXVII, fig. 1–17 ( Lynceus ); Stingelin, 1906: 324–325, Taf. 13, Fig. 18; Bening, 1941: 312–315, fig. 129; Frey, 1958: 249–252, pl. 38, fig. 49 –56, 1959: 35–36, fig. 36, 37; Herbst, 1962: 89, fig. 69; Smirnov, 1971: 467–474, fig. 582–588, 590 ( Biapertura), 1978: fig. 37, А–Г, 45, З, 47, А,Б ( Biapertura) , 1984: 105, fig. 17 ( Biapertura ); Flössner, 1972: 318–321, abb. 151; Negrea, 1983: 325–329, Fig. 133, A–P ( Biapertura ); Alonso, 1996: 345–346, fig. 154, A–S; Sinev, 1997: 47–55, Fig. 1 –4, 1998: 58, Fig 5, 2000: 197–202, Fig. 1 –22. Material. Republic of South Africa. Eastern Cape province: 5 parthenogenetic females from Settler's Dam, Thomas Baines N.R., (33 ° 23 ' 40 "S, 26 ° 30 ' 5 "E), 25.11. 1989, NNS 2002 – 176; ca. 30 parthenogenetic females from Wildebeestrivier Dam, McClear, 31 ° 3 ' 3 "S, 28 ° 18 ' 53 "E), 27.03. 1993, NNS 2002 – 120; 8 parthenogenetic females from Watercatchment Dam, McClear, (31 ° 6 ' 29 "S, 28 ° 20 ' 9 "E), 28.03. 1993, NNS 2002 – 124; parthenogenetic female from Gatberg River Dam, Chantry (31 ° 14 ' 52 " S, 28 ° 5 ' 6 "E) 26.03. 1993, NNS 2002 – 118; over 30 parthenogenetic female from Mountaindrive Dam, Grahamstown (33 ° 19 ' 10 " S, 26 ° 31 ' 5 " E), 24.11. 1989, NNS 2002 – 173; 4 parthenogenetic females from Botanical Gardens Dam, Grahamstown (33 ° 19 '0" S, 26 ° 30 ' 50 ") E 24.11.1989, NNS 2002 – 174; 3 parthenogenetic females from Jamieson major Dam, Grahamstown (33 ° 19 ' 15 "S, 26 ° 26 ' 30 "E), 0 7.12. 1989, NNS 2002 – 187; 3 parthenogenetic females from Carlisle's Hoek Plateau River, Rhodes (30 ° 39 ' 56 "S 27 ° 56 ' 25 "E), 0 1.04. 1993, NNS 2002 – 139; 2 parthenogenetic females from Carlisle's Hoek Plateau River, interstitial, Rhodes (30 ° 39 ' 56 "S 27 ° 56 ' 25 "E), 0 1.04. 1993, NNS 2002 – 138; KwaZulu-Natal province: 3 parthenogenetic females from Rugged Glen Dam, Mont Aux Sources (28 ° 41 ' 15 "S 28 ° 59 ' 40 "E), 21.10.1994; 3 parthenogenetic females from Trout Dam at camp, Royal Natal (28 ° 40 ' 8 "S 28 ° 57 ' 18 "E), 21.10. 1994, NNS 2002 -092; parthenogenetic female and head shield from Dam near White Mountain Resort, White Mountain (29 ° 6 '0"S 29 ° 36 ' 54 "E), 15.03. 1996, NNS 2002 -014; North West province: over 20 parthenogenetic females from Kaalplaats Oog, (26 ° 47 ' 30 "S 26 ° 1 ' 30 "E) 0 9.11. 1993, NNS 2002 - 163; Western Cape province: 6 parthenogenetic females, numerous exuvia from R 44 Pool 2, at T.O. of N 2, Cape (33 ° 52 '0"S 18 ° 22 '0"E), 0 5.12. 1989, NNS 2002 - 202. Additional material: over 100 females, 37 ephippial females, 35 adult males, from Glubokoe lake, Moscow Area, Russia, 0 8 –0 9.1995, coll. Sinev A.Yu.; over 50 females, 12 ephippial females, 9 adult males from Nizhnee Ershovskoe Lake, White Sea biological station of Moscow State University, Pojakonda, Murmansk Area, Russia, 0 8 –0 9.1996 coll. Izvekova E.I. Diagonosis. Specimens from all studied South Africa samples were identical to previously described specimens from Eurasia in the additional material. As figured in general shape (Fig. 5 A), morphology of the valves (Fig. 5 B–C), head shield, head pores (Fig. 5 D–E), labrum (Fig. 5 F–G), postabdomen (Fig. 5 H), antenna (Fig. 5 I), antennula (Fig. 5 J) and thoracal appendages (Fig. 6 A–F), for comparison, see Alonso (1996) and Sinev (1997). On the other hand, all studied specimens were easily separated from A. martensi sp. n. by several characters, summarized in Table 1. No specimens with intermediate state of these characters were present in the studied material, and these species were not found sympatrically. Character Alona martensi sp. n. Alona affinis (Leydig, 1860) Posteroventral corner of valves with about 20 setules in 4–5 groups with 35–50 setules in 6–9 groups Head pores PP = 2.5–3 IP in adults PP= 1.5–2 IP in adults Postabdomen narrowing distally with more parallel margins Antennule with 5–6 long setules on anterior face with 1–3 long setules on anterior face Spine on basal segment of antennal less than 2 / 3 length of middle segment longer than middle segment exopodite Epipodites IV–V projection longer than epipodite itself two times shorter than epipodite itself : Published as part of Sinev, Artem Yu, 2009, Cladocerans of the Alona affinis (Leydig, 1860) group from South Africa, pp. 41-54 in Zootaxa 1990 on pages 49-51, DOI: 10.5281/zenodo.185539 : {"references": ["Smirnov, N. N. (1971) Chydoridae of the world. Fauna U. S. S. R. Rakoobraznie, 1 (2), 531 pp. (English translation 1974, Jerusalem).", "Flossner, D. (1972) Krebstiere, Crustacea (Kiemen- und Blattfusser. Branchiopoda, Fischlausse, Branchiura). Die Tierwelt Deutschlands. Gustav Fischer Verlag. Jena. 499 p.", "Alonso, M. (1996) Crustacea, Branchiopoda. Fauna Iberica. Vol. 7. Museo National de Ciencias Natural, Consejo Superior de Investigationes Cientificas, Madrid, 486 pp.", "Sinev, A. Yu. (1997) Review of the affinis - group of Alona Baird, 1843, with the description of a new species from Australia (Anomopoda Chydoridae). Arthropoda Selecta, 6, 47 - 58."]}