1. Species Chlamys (Lyropecten) acanikos J. A. Gardner, 1926 † accepted as Lindapecten acanikos (J. A. Gardner, 1926) † (unaccepted > superseded combination)
2. Species Chlamys (Lyropecten) brooksvillensis Mansfield, 1937 † accepted as Dimarzipecten brooksvillensis (Mansfield, 1937) † (unaccepted > superseded combination)
3. Species Chlamys (Lyropecten) duncanensis (Mansfield, 1934) † accepted as Lyropecten duncanensis (Mansfield, 1934) † (unaccepted > superseded combination)
4. Species Chlamys (Lyropecten) dysoni Tucker-Rowland, 1938 † accepted as Lyropecten dysoni (Tucker-Rowland, 1938) † (unaccepted > superseded combination)
5. Species Chlamys (Lyropecten) incertae Tucker-Rowland, 1938 † accepted as Anatipopecten incertae (Tucker-Rowland, 1938) † (unaccepted > superseded combination)
6. Species Chlamys (Lyropecten) liveoakensis Mansfield, 1937 † accepted as Chlamys liveoakensis Mansfield, 1937 † (subgenus not accepted)
7. Species Chlamys (Lyropecten) madisonius (Say, 1824) † accepted as Chesapecten madisonius (Say, 1824) † (unaccepted > superseded combination)
8. Species Chlamys (Lyropecten) marionensis Mansfield, 1937 † accepted as Dimarzipecten marionensis (Mansfield, 1937) † (unaccepted > superseded combination)
9. Species Chlamys (Lyropecten) menthifontis (Glawe, 1970) † accepted as Lyropecten menthifontis (Glawe, 1970) † (unaccepted > superseded combination)
10. Species Chlamys (Lyropecten) nematopleura J. A. Gardner, 1936 † accepted as Chesapecten nematopleura (J. A. Gardner, 1936) † (unaccepted > superseded combination)
11. Species Chlamys (Lyropecten) nicholsi (J. A. Gardner, 1926) † accepted as Argopecten nicholsi (J. A. Gardner, 1926) † (unaccepted > superseded combination)
12. Species Chlamys (Lyropecten) nodosiformis (Pusch, 1837) † accepted as Gigantopecten nodosiformis (Pusch, 1837) † (unaccepted > superseded combination)
13. Species Chlamys (Lyropecten) planicosta J. A. Gardner, 1943 † accepted as Carolinapecten eboreus eboreus (Conrad, 1833) † (unaccepted > junior subjective synonym)
14. Species Chlamys (Lyropecten) pontoni Mansfield, 1932 † accepted as Nodipecten collierensis collierensis (Mansfield, 1932) † (unaccepted > junior subjective synonym)
15. Species Chlamys (Lyropecten) pulchricostata [sic] † accepted as Lyropecten pulchricosta (O. Meyer & Aldrich, 1886) † (unaccepted > misspelling - incorrect subsequent spelling)
16. Species Chlamys (Lyropecten) santamaria Tucker-Rowland, 1934 † accepted as Chesapecten santamaria (Tucker-Rowland, 1934) † (unaccepted > superseded combination)

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