Anthalona spinifera Tiang-nga, Sinev et Sanoamuang 2016

18. * Anthalona spinifera Tiang-nga, Sinev et Sanoamuang, 2016 Localities and specimens found: 42 – 1♀, 1♀ ov. Distribution and ecology. As the previous congener, this is a rare member of the genus, recently described from Thailand (Tiang-nga et al. 2016). It probably also belongs to the endemics of the region. So far, A. spinifera has only been recorded in Thailand and Malaysia (Sinev 2016, 2017; Tiang-nga et al. 2016, 2020; Sinev & Yusoff 2018; Choedchim & Maiphae 2023; Sinev et al. 2023b). This is its first find in Vietnam. The lifestyle and ecology of A. spinifera are poorly studied. Obviously, it is a macrophyte-associated species that prefers overgrown shallow biotopes. Tо date, the crustacean has been detected in lakes, swamps, rice fields and slow-flowing rivers (Sinev 2017; Tiang-nga et al. 2016, 2020; Sinev & Yusoff 2018; Choedchim & Maiphae 2023). We found two of its females in a small artificial pond, abundantly plant-filled and heavily acidified (see Appendix 1).