Sibirenauta tuwaensis Starobogatov et Zatravkin in Starobogatov, Prozorova et Zatravkin, 1989

Marinskiy, Vadim V., 2017, Checklist of the freshwater snails (Mollusca: Gastropoda) of Mongolia, Zootaxa 4317 (1), pp. 45-78 : 62

Sibirenauta tuwaensis Starobogatov et Zatravkin in Starobogatov, Prozorova et Zatravkin, 1989

( fig. 6 С )

Regional distribution. The holotype of S. tuwaensis originS from a minor waterbody (a temporary puddle) Situated in TuVa Republic cloSe to the RuSSian-Mongolian border (SitnikoVa et al. 2014b). Two paratypeS were collected by Potanin from the Eter gol RiVer in Northern Mongolia (one of theSe paratypeS iS illuStrated by uS, See fig. 6 C). We are unaware of other findingS of S. tuwaensis in Mongolia; it iS abSent in our own SampleS.

Extra-limital distribution. SeVeral findingS of thiS SpecieS from the Upper YeniSei baSin (Southern Siberia) are known to the date (SitnikoVa et al. 2014b).

Remark. Taylor (2003) belieVed that, judging from itS reproductiVe anatomy, thiS SpecieS actually cannot be placed into the genuS Sibirenauta StarobogatoV et Streletzkaja, 1967.

Figures

FIGURE 6. Shells and genitalia of Physidae and Planorbidae discUssed in the paper. A— Physa fontinalis (19.06.2010, a channel of the Kherlen River, leg. Palatov). B— Ph. dalmatina / taslei (09.06.1996, Hövsgöl Lake near Khankh River moUth, leg. Sitnikova, LIN). C— Sibirenauta tuwaensis, a paratype (Eter River, leg. Potanin, ZIN). D— Armiger annandalei, Afghanistan, a sWamp near Vazirabad (after Likharev & Starobogatov 1967, fig. 9). E— A. annandalei from Mongolia (14.08.2012, Khait Dalai NUUr lake, leg. Palatov). F— A. crista (15.08.2012, Dorgon Water reservoir, leg. Prokin). G— Bathyomphalus contortus (15.07.2012, Chono-Khoraikhgol River, leg. Vinarski). H— Choanomphalus mongolicus (20.07.1997, Hövsgöl Lake, leg. Sitnikova, LIN). I, J—Shell, copUlative organ and prostate of Gyraulus chinensis (23.07.2012, Airag NUUr Lake, leg. Vinarski). K— G. sibiricus var. major (1877, Eter River, leg. Potanin, det. Martens, ZIN). Scale bars: 1 mm (A, D – F, H – J), 2 mm (B, C, K). All photos are original, except of I, J (made by Peter Glöer).