Schrenck in the north of the Japanese Sea led to the discovery of no fewer than 256 species (Gasteropods, Brachiopods and Conchifers).
Schrenck, Reisen and Forschungen im Amurlande (1858-- 1891).
The Siberian branch of the Russian Geographical Society was founded at the same time at Irkutsk, and afterwards became a permanent centre for the exploration of Siberia; while the opening of the Amur and Sakhalin attracted Maack, Schmidt, Glehn, Radde and Schrenck, whose works on the flora, fauna and inhabitants of Siberia have become widely known.
Schrenck, Reisen and Forschungen im Amurgebiet (St Petersburg, 1858-1891); Trudy of the Siberian expedition - mathematical part (also geographical) by Schwarz, and physical part by Schmidt, Glehn and Brylkin (1874, seq.); G.