Nedorchynchotalona chiangi Kotov & Sinev 2011
Creators: name: Kotov, Alexey A.
name: Jeong, Hyun Gi
name: Lee, Wonchoel
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Diplostraca
Nedorchynchotalona
Nedorchynchotalona chiangi

description: 20. Nedorchynchotalona chiangi Kotov & Sinev, 2011
Figs 26–27
Synonymy. Rhynchotalona falcata (Sars) in Chiang & Du 1979, p. 231, Fig. 159A–B. Nedorchynchotalona chiangi Kotov & Sinev, 2011, p. 281–283, Figs 5–6.
Type locality. "River Amur near the mouth of Zeya River in region of Blagoveshchensk town" (Kotov & Sinev 2011), Amur Area, Russia.
Locality in Korea. 6a (see Fig. 1 and Table 1).
Parthenogenetic female. Body low, posterior margin regularly curved from tip of rostrum to rounded posterodorsal angle lacking any denticles, posterior margin convex, postero-ventral angle broadly rounded (Fig. 26 A–B, 27D). Body moderately compressed laterally (Fig. 27 E). Head with regularly curved, elongated rostrum (three times longer than antenna I), ocellus and compound eye of similar size (Fig. 26 C). Head shield without any dorsal head pores (Fig. 27 E). Labral keel relatively small, with regularly curved or slightly undulated anterior margin and rounded apex (Fig. 26 C–D, 27F). Valves with 35–40 setae, first 7–9 setae very long, posterior setae slightly submarginal, with short setules between them; a row of delicate setules located far from posterior margin on inner face of valve (Fig. 26 E); strong striation in dorsal portion of valves. Postabdomen regularly widened in distal portion, ventral margin straight, preanal margin 1.5 times longer than anal one, slightly undulated; preanal angle well-expressed; anal margin concave; postanal angle expressed; postanal margin convex, dorso-distal angle broadly rounded, distal margin ill-expressed or absent (Fig. 26 F–G, 27G). On distal portion, 6–8 clustered postanal teeth and about 7–8 groups of long lateral setules, groups of short setules on anal margin. Postabdominal claw long, slightly curved, length of a single basal spine of 0.2 claw length, 1–2 minute spinules at its base. Antenna I short, with antennular sensory seta approximately in middle, three clusters on setules on antenna I anterior face, terminally, nine terminal aesthetascs, among them two larger than the rest (Fig. 27 A). Antenna II short, with two short sensory setae in coxal portion, basal segment with a short spine distally (Fig. 27 B, H). Antennal formula: setae 0-0-3/0-1-3, spines 1-0-1/0-0-1; a spine on proximal segment of exopod 1.5 times longer of second segment; apical spines longer apical segments. Five limbs as described by Kotov & Sinev (2011). Limb I with ODL supplied with a single long seta; IDL with two strong setae and a very short seta (Fig. 27 C). Size in our material 0.30–0.47 mm.
Notes. The species was known from several localities in Far East of Russia and China. It is probably endemic of the Far East. This is the first record of the genus for Korea.
description: Published as part of Kotov, Alexey A., Jeong, Hyun Gi & Lee, Wonchoel, 2012, Cladocera (Crustacea: Branchiopoda) of the south-east of the Korean Peninsula, with twenty new records for Korea *, pp. 50-90 in Zootaxa 3368 on pages 83-84, DOI: 10.5281/zenodo.214313