Author: Van der Schalie, H. & D.S. Dundee.
Title: Transect distribution of eggs of Pomatiopsis lapidaria Say, an amphibious Prosobranch snail
Description: 1959. In 8vo, offp., pp. 12 with 5 figs. Offprint from Trans. Amer. Micros. Soc., 78: 409-420

Keywords: shells molluscs freshwater snail


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