Tattersfield, P, Paul, C. R. C. & Allen, J. A. (2001). Columella in sub-Saharan Africa: a range extension of over 4000 kilometres?. Journal of Conchology. 37: 281–284.
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Tattersfield, P, Paul, C. R. C. & Allen, J. A.
2001
Columella in sub-Saharan Africa: a range extension of over 4000 kilometres?