19- Cypridopsis silvestrii Daday, 1902

Global distribution: NT.

Argentinian distribution: Chubut, Neuquén, Río Negro, Santa Cruz

Ecology: This species was found in stagnant waters. It was recorded in altitude between 865 and 1049 m a.s.l.), with temperatures ranging from 4.6° to 21.3°C, alkaline (pH: 8–9.5) and well oxygenated (10.5–14.3 mg /l) waters, in electrical conductivity values ranging between 126 and 42400 μS/cm, showing a remarkably high salinity tolerance.

Cited by: Daday (1902), Martens & Behen (1994); Cusminsky et al. (2005); Ramón Mercau et al. (2012); Coviaga et al. (2018b); Perez et al. (2019); Ramos et al. (2021).