Genus Notoplax H. Adams, 1861

Notoplax: H. Adams 1861: 385 .

Type species: Cryptoplax (Notoplax) speciosa H. Adams, 1861, by monotypy.

For synonymy, see Gowlett-Holmes (1991).

Distribution: Restricted to Australia and New Zealand (Gowlett-Holmes 1991). Oligocene – Recent.