Eastern Pacific, from Mexico to Ecuador.
The holotype of this species (USNM E06768) was collected in Panama from Playa Grande, San Jose Island, Pearl Islands Archipelago, Gulf of Panama, eastern Pacific, North Pacific Ocean. I have also collected this species in Panama from Playa Las Lajas, in the Gulf of Chiriqui.
Mortensen, T. (1948). A monograph of the Echinoidea 4(2). Clypeasteroida. Copenhagen. 471 pp., 258 figures, 72 pls; page: 443.
Clark, A.H. (1946). Echinoderms from the Pearl Islands, Bay of Panama with a revision of the Pacific species of the genus Encope. Smithsonian Misc. Coll. 106: 1-11.
LSID urn:lsid:marinespecies.org:taxname:513260Holotype: USNM E06768
Type locality: Playa Grande, San Jose Island, Pearl Islands Archipelago, Gulf of Panama, eastern Pacific, North Pacific Ocean.
Paratypes: USNM E1007 & ZMUC ECH-335
Type locality: Mazatlan, Sonora, Mexico, Gulf of California, North Pacific Ocean.
