Holyoak, D.T. & Holyoak, G.A. (2017). A revision of the land-snail genera Otala and Eobania (Gastropoda, helicidae) in Morocco and Algeria. Journal of Conchology, 40 (6): 419-490. London.
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Holyoak, D.T. & Holyoak, G.A.
2017
A revision of the land-snail genera Otala and Eobania (Gastropoda, helicidae) in Morocco and Algeria