56- Newnhamia patagonica (Vávra, 1898)

Global distribution: NT.

Argentinian distribution: Río Negro, Santa Cruz.

Ecology: This species was found in permanent freshwater environments. It was recorded from 116 to 900 m a.s.l., with alkaline waters (pH: 7.8–9.9) and electrical conductivity values ranging between 247 and 1738 μS/cm.

Cited by: Vávra (1898); Martens & Behen (1994); Schwalb et al. (2002); Cusminsky et al. (2005); Ramón Mercau & Laprida (2016); Coviaga et al. (2018a); Cusminsky et al. (2020).