Anthalona vandammei Sinev, Tiang-nga, & Sanoamuang, 2023

Anthalona vandammei Sinev, Tiang-nga, & Sanoamuang, 2023

Figs. 6F–J View FIGURE 6

Maiphae, Pholpunthin & Dumont 2008: 34, Fig. 2b View FIGURE 2 ( Alona verrucosa ); Sinev, Tiang-nga & Sanoamuang 2023: 68–74, Figs. 1–5 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 .

Material examined. Three parthenogenetic females from Bera Lake , Pahang (3.13704° N, 102.60639° E), 01.02.2018 GoogleMaps .

This is the first record for Malaysia. Studied specimens have a body shape typical of the species ( Fig. 6F View FIGURE 6 ), morphology of valves ( Fig. 6G View FIGURE 6 ), head pores ( Fig. 6H View FIGURE 6 ), labrum ( Fig. 6I View FIGURE 6 ) and postabdomen ( Fig. 6J View FIGURE 6 ). The species is very close in morphology to Anthalona spinifera but differs from this and all other East Asian species of the genus in long posterior setae on valves ( Fig. 6G View FIGURE 6 ), with the last setae located at postero-ventral angle of valves, followed by 15 short setulae only. For detailed description see Sinev et al. (2023).

Anthalona vandammei is a rare endemic of South-East Asia, previously known from Lake Kud-Thing in Bueng Kan Province, North-East Thailand, and in Thungtong swamp in Surat Thani Province, Southern Thailand (Sinev et al. 2023). The species is associated with macrophytes.