Prendalona werestshagini Sinev & Sousa & Elmoor-Loureiro 2023, comb. nov.
Prendalona werestshagini (Sinev, 1999) comb. nov. (Fig. 13) Smirnov, 1971: 380, Fig. 451 (Alona guttata guttata partum); Chiang, 1963: Plate VI: Fig. 39–40 (Alonella rostrata); Chiang, Du, 1979: 227, Fig. 155A–D (Alona pulchella); Sinev, 1999: 23–30, Fig. 1–4 (Alona); Sinev, 2002: 938, Fig. 1 л, 3и,...
| Main Authors: | , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://zenodo.org/record/7959845 https://doi.org/10.5281/zenodo.7959845 |
| Summary: | Prendalona werestshagini (Sinev, 1999) comb. nov. (Fig. 13) Smirnov, 1971: 380, Fig. 451 (Alona guttata guttata partum); Chiang, 1963: Plate VI: Fig. 39–40 (Alonella rostrata); Chiang, Du, 1979: 227, Fig. 155A–D (Alona pulchella); Sinev, 1999: 23–30, Fig. 1–4 (Alona); Sinev, 2002: 938, Fig. 1 л, 3и,с, 4и, 5д,л (Alona); Sarmaja-Karjonen & Sinev, 2008: 44–46, Fig. 2A–F (Alona); Kotov et al., 2010: 247, Fig. 141: 12–14 (Alona); Korovchinsky et al., 2021: 288–289, Fig. 85: 10–14 (Alona); Sinev et al. 2021: 243–248, Fig. 1–4 (Alona). Type locality. Lake in Ara-Bel’ river valley, 40 km from Petrov’s glacier, Central Tien-Shan, Kyrgyzstan. Type material. Holotype. Adult male, at Zoological Museum of M. V. Lomonosov Moscow State University, Ml –08. Paratypes. Over 30 parthenogenetic and ephippial females, 5 adult males, 2 juvenile males of instar II at Zoological Museum of M. V. Lomonosov Moscow State University, Ml –09 – Ml –14. Material studied earlier: see Sinev (1999, 2002) and Sinev et al. (2021) for the list of material from Russia, Kyrgyzstan and Mongolia. Description. Parthenogenetic female. General. Body (Fig. 13A) oval in lateral view, strongly compressed laterally, of moderate height, maximum height at middle of the body; in adults height/length ratio 0.67–0.70. Dorsal margin uniformly curved; posterodorsal and posteroventral angles broadly rounded; posterior margin uniformly curved; ventral margin almost straight; anteroventral angle rounded. Valves with weak longitudinal lines. Ventral margin with 40–50 setae. Posterodorsal angle with about 70 setulae. Head. Compound eye and ocellus large, of similar size. Head shield (Fig. 13B) without sculpturing, with a broadly rounded posterior portion. Three major head pores, median pore located in the middle between the other two, PP about 0.7–1.1 IP (Fig. 13C). Lateral head pores located at about 0.8 IP distance from midline, at the level of middle major head pore. Labrum. Labral keel without prominence at anterior margin, posterior margin of keel with two ... |
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