Christensen, C. C. & Miller, W. B. (1975). Genital anatomy and phylogeny of the snails, Berendtia Crosse and Fischer and Spartocentrum Dall (Stylommatophora: Bulimulidae). The Nautilus. 89(2): 43-46, figs. 1-7.
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Christensen, C. C. & Miller, W. B.
1975
Genital anatomy and phylogeny of the snails, <i>Berendtia</i> Crosse and Fischer and <i>Spartocentrum</i> Dall (Stylommatophora: Bulimulidae)