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Figure 56. Marginellas. a, Marginella haematita Kiener; b, M. aureocincta Stearns; c, M. dejjticulta Conrad; d, Prunum bellmn Conrad; e, Frunum amabile Redfield; f, F. Immnilum Conrad; g, P. apicinwn Menke; h, P. virginianum Conrad; i, Hyalina avena Val.; j, Persicula cat en at a Montagu; k, H. avenacea Deshayes; 1, H. torticida Dall; m, Persicula immita Pfeifer; n, GibbeniVma pyrifonms Cpr.; o, G. ovulijoniiis Orb. (m and o Xio, the others X5).