Makiyamaia MacNeil, 1961

Type species (o.d.) Pleurotoma coreanica Adams & Reeve, 1850, Recent of Japan and Korea.

The following species, described as Turris orthopleura Kilburn, 1983, was originally known only from specimens that have since proved to be juveniles. The adults now available are clearly not referable to Turris, but to genus Makiyamaia, family Clavatulidae (Bouchet, et al, 2011; Puillandre, et al, 2011).

This genus, reported previously only from Japan, Korea and China, appears also to be represented in South Africa by Pleurotoma gravis Hinds, 1843, of the Agulhas Bank, and probably Surcula scalaria Barnard, 1958, from off Cape Point in 480–800 fath. [878–1463 m]. Another South African species proves to be Turris orthopleura, which is here redescribed, based on fully adult specimens.