Metaxia diadema Bartsch, 1907

Metaxia diadema Bartsch, 1907a: 182 .

Type locality. United States, California, Monterey and Ocean Beach .

Type material. USNM 153045, holotype . USNM 195203, paratypes .

Distribution. United States, California (Bartsch 1907a).

Remarks. Skoglund (1992) considered Metaxia diadema Bartsch, 1907 a junior synonym of Cerithiopsis convexa Carpenter, 1857 .