Høisaeter (2009: 27) considers the distribution to be restricted to the Western Atlantic and does not accept ... [details]
Preoccupied by Cyclostrema affine Jeffreys, 1883; replaced by Cyclostrema proximum Tryon, 1888. [details]
Replacement name for C. affine Verrill, 1884, non Jeffreys, 1883. [details]