Alona glabra Sars, 1901

Kotov, Alexey A., Sinev, Artem Y. & Berrios, Viviana Lorena, 2010, The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism 2430, Zootaxa 2430 (1), pp. 1-66 : 33

Alona glabra Sars, 1901

Alona cambouei Guerne & Richard in Richard 1897, p. 289 –290, figs 35–36; Delachaux 1919, p. 28, Pl. 2, fig. 10; Harding 1955, p. 343 –344, figs. 61–64; Uéno 1967, p. 559, figs 35–36.

Alona glabra Sars, 1901, p. 49 –51, Pl. 9: figs. 6, 6a; Daday 1905, p. 173 –174, Pl. 11, figs 3–4; Albertina Kameya 1986, p. 135 –136, fig. 6–7; Sinev 2001a, p. 203 –280, figs 1–40; Elmoor-Loureiro et al. 2004, p. 417, figs 12–13.

Alona pulchella King in Infante 1980, p. 598 –599, figs 5a–c.

Studied material. 6 parthenogenetic females from locality 3; 75 parthenogenetic females from locality 4.

Diagnosis, redescription. See Sinev (2001a).

Comments. Type locality of A. glabra is " Argentina ", no further information was given by Sars (1901). Lectotype . female, GOS F12326a; Paralectotypes. 40 females, F12326 b.

Morphology of the studied specimens completely agrees with the recent redescription of the species ( Sinev, 2001a) with one exception. About one third of the studied specimens had tuberculated head shields and dorsal part of valves. Polymorphism in the sculpture of head shield and valves is known for several species of Alona -like animals: Alona verrucosa Sars, 1901 ; A. guttata Sars, 1862 ; A. rustica Scott, 1895 ; Coronatella rectangula (Sars, 1862) , and others. Apparently specimens with tuberculated valves and head shield should be treated not as a subspecies, but as varieties ( Sinev 2001b).

Distribution. Common in Neotropics ( Sinev 2001a; Elías-Gutiérrez et al. 2006).