Bivalvia | ... | Hyrioidea | Hyriidae | Hyriinae | Castaliini | Castalia ambigua

Sowerby, 1869. Conch. Icon. 17: pl. 2, sp. 6.
Type(s): HOLOTYPE BMNH_1841-4-6-149, South Carolina.
+ Castalia ambigua Lamarck, 1819 — Simone, 2006: 252.
+ Castalia ambigua Lamarck, 1819 — Haas, 1969: 535.
+ Castalia (s.s.) quadrilatera retusa Hupé, 1857 — Modell, 1950: 139.
+ Tetraplodon ambiguus Lamarck — Haas, 1916: 8.
+ Tetraplodon ambiguus (Sowerby, 1823) — Simpson, 1914: 1196.
+ Tetraplodon retusus (Hupé, 1857) — Ihering, 1910: 126.
+ Tetraplodon ambiguus (‘Lamarck’ Sowerby,1823) — Simpson, 1900: 864.
+ Margaron (Prisodon) truncatus (Schum.) — Lea, 1870: 184.
= Castalia carolinensis Sowerby, 1869 — Sowerby, 1869: pl. 2, sp. 6.