1917 41 p., 2 figures, 2 plates, 1 map, paperbound (original printed covers). Library stamp on title-page, paper label on verso title-page. In Russian. Rare.Written by the Dean of Russian palaeomalacology, Nicolai Ivanovich Andrusov (1861–1924), who was born and lived in Odesa. Deals with Pliocene brackish water bivalves (Cardiidae, etc.), including new species.