Mortensen, T. (1948). A monograph of the Echinoidea 4(2). Clypeasteroida. Copenhagen. 471 pp., 258 figures, 72 pls; pages: 444-445.
LSID urn:lsid:marinespecies.org:taxname:513258Eastern Pacific from Mexico to Peru.
In Panama this species has been collected in the eastern Pacific from Venado Beach, Panama Bay (USNM E 14590); between Tortola and Tortolita Islands, Panama Bay (USNM E 30590; Centroid Latitude: 8.8639, Centroid Longitude: -79.5619, depth 6 m); from Saint Elmo Bay, Rey Island, Perlas Archipelago (USNM E 7601; depth 4 to 7 m); and from Jaque, Darien, East side of the Gulf of Panama (USNM E 7145).
Echinoglycus cyclopora (L. Agassiz, 1841) (subjective junior synonym)
Echinoglycus micropora (L. Agassiz, 1841) (unaccepted combination)
Encope cyclopora L. Agassiz, 1841 (subjective junior synonym)
Encope occidentalis Verrill, 1867 (subjective junior synonym)
Encope tetrapora L. Agassiz, 1841 is not a good species and should not be considered a subspecies of E. micropora. This species was erected on the basis of the posterior lunules being open (notched) rather than closed as in typical E. micropora. However, this character varies within members of a population of E. micropora, with a few individuals sometimes having one or both posterior lunules open (a similar situation also occurs among E. emarginata in the Caribbean).
