Fig. 3 in Addition to Sweden's freshwater sponge fauna and a phylogeographic study of Spongilla lacustris (Spongillida, Porifera) in southern Sweden

Fig. 3. Ephydatia fluviatilis (Linnaeus, 1759). A. Habitus (P059-211231-1). B. Spiculae, m = megasclere (P059-170902-2), g = gemmulosclere (P059-170902-1). C. Estimated megasclere size distribution within and between specimens, P059-170902-1 (solid line), P059-170902-2 (dashed), P059-170902-3 (dotted). Marks on the x-axis represent spiculae measured. Brackets correspond to ranges in literature (red = Tendal 1967b; blue = Penney & Racek 1968; black = Evans & Montagnes 2019).