In Panama this species has been collected in the Caribbean from Galeta Island (USNM E 36943; depth 15 m), and from Naranjo Abajo Island, Minas Bay (USNM E 14585; depth 4 m) . I have also collected this species from Playa La Angosta, Portobelo (see images), at a depth of 3 to 5 m.
Mortensen, T. (1948). A monograph of the Echinoidea 4(2). Clypeasteroida. Copenhagen. 471 pp., 258 figures, 72 pls; pages: 438-440.
LSID urn:lsid:marinespecies.org:taxname:513255Desmoulinaster cassidulinus (Des Moulins, 1837) (subjective junior synonym)
Echinodiscus emarginatus Leske, 1778 (transferred to Encope)
Echinoglycus frondosus Gray, 1855 (subjective junior synonym)
Echinus emarginatus (Leske, 1778) (transferred to Encope)
Encope ghiesbrechtii Belval, 1863 (subjective junior synonym)
Encope nummularia L. Agassiz & Desor, 1847 (subjective junior synonym)
Encope oblonga L. Agassiz, 1841 (subjective junior synonym)
Encope quinqueloba (Eschscholtz, 1829) (subjective junior synonym)
Encope subclausa L. Agassiz, 1841 (subjective junior synonym)
Encope valenciennesi L. Agassiz, 1841 (subjective junior synonym)
Mellita lobata L. Agassiz, 1841 (subjective junior synonym)
Mellita nummularia (L. Agassiz & Desor, 1847) (subjective junior synonym)
Moulinia cassidulina (Des Moulins, 1837) (subjective junior synonym)
Moulinsia cassidulina (Des Moulins, 1837) (subjective junior synonym)
Scutella cassidulina Des Moulins, 1837 (subjective junior synonym)
Scutella emarginata (Leske, 1778) (transferred to Encope)
Scutella quadrifora Lamarck, 1816 (subjective junior synonym)
Scutella quinqueloba Eschscholtz, 1829 (subjective junior synonym)
