Hughes R.N. & Emerson W.K. (1987). Anatomical and taxonomic characteristics of Harpa and Morum (Neogastropoda: Harpaidae). The Veliger. 29(4): 349–358.
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Hughes R.N. & Emerson W.K.
1987
Anatomical and taxonomic characteristics of <i>Harpa</i> and <i>Morum</i> (Neogastropoda: Harpaidae).