Cerithiopsis convexa Carpenter, 1857

Cerithiopsis convexa Carpenter, 1857: 444, no. 561.

Metaxia convexa (Carpenter, 1857) — Hertlein & Strong 1955: 136.

Type locality. Mexico, Mazatlan .

Type material. Type material not located so far.

Distribution. Ecuador (Skoglund 1992), Ecuador, Galapagos Islands (Hertlein & Strong 1955; Skoglund 1992; Kaiser 1993; Kaiser 1997), Mexico (Carpenter 1857), Panama (Skoglund 1992), United States, California (McLean 1969; Skoglund 1992).

Remarks. Skoglund (1992) considered Metaxia diadema Bartsch, 1907 a junior synonym.