Orthoseira dickiei Thwaites Orthoseira dickiei Thwaites in Ann. Mag. Nat. Hist. ser. 2, 1: 168, pl. XII, fig. E, 1-7. 1848is basionym for Angusticopula dickei (Thwaites) Houk, Klee & H.Tanaka in Fottea 17 suppl: 25. 2017