Distorsio ridens (Reeve, 1844)
    Reeve's type figure of Triton ridens (plate 12, fig. 46) from Monograph of the genus Triton. Conchologia Iconica 2: pls. 1-20.

Distorsio ridens (Reeve, 1844) Type Figure
    Lewis (1972) designated a "lectotype" of D. ridens - a specimen in the AMNH (Haines Coll.), and Emerson and Sage (1990a, 1990d) correctly identified that shell with D. clathrata a few years later. The latter authors mentioned D. robinsoni Petuch but dismissed it as a mere form of D. clathrata (shorter spire and siphonal canal). In our opinion D. ridens is actually D. robinsoni, and the latter is specifically distinct from D. clathrata.

Emerson, W. K. and W. E. Sage, 1990a. Distorsio ridens (Reeve, 1844): a synonym of Distorsio clathrata (Lamarck, 1816) Gastropoda: Personidae. The Nautilus 103(4): 131-135.

Emerson, W. K. and W. E. Sage, 1990b. Addenda to Distorsio ridens (Reeve, 1844): a synonym of Distorsio clathrata (Lamarck, 1816) Gastropoda: Personidae. The Nautilus 104(4): 108-110.

Lewis, H., 1972. Notes on the genus Distorsio (Cymatiidae) with descriptions of new species. The Nautilus 86(2-4): 27-50.