Genus Vellumnus Ng, 2010

Type species. Pilumnus labyrinthicus Miers, 1884, by original designation.

Remarks. Of the five Vellumnus species originally recognised, Ng (2010) expressed doubt about the assignment of V. vermiculatus (A. Milne-Edwards, 1873) to this genus stating that it may require transferring to Lophoplax Tesch, 1918 . Examination of type specimens as well as material from the West Pacific were examined and the carapace characters show it is closer to Lophoplax, notably in the hepatic, gastric, and intestinal regions being swollen and setae covering the surfaces around them (see also Maenosono, 2019; Trivedi et al., 2022). It has since been transferred to this genus (Ng and Rahayu, 2023).