Macromphalus backeljaui is a species of sea snail, a marine gastropod mollusk in the family Vanikoridae.
Original description Poppe G.T., Tagaro S.P. & Stahlschmidt P. (2015). New shelled molluscan species from the central Philippines I. Visaya. 4(3): 15-59. page(s): 26, pl. 9 figs 1-2.
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