In Panama this species has been collected in the eastern Pacific from:
-Panama Bay (USNM 34049)
-Taboga Island, Panama Bay (USNM 39318)
-Taboguilla Island, Panama Bay (USNM 1017373; associated with plant debris, depth 1 m)
-Naos Island, Panama Bay (USNM E 25630)
-Venado Island, Panama Bay (USNM E 14587)
-Whorehouse Reef, Panama Bay (USNM E 25599; Centroid Latitude: 8.9186, Centroid Longitude: -79.5378)
-Paitilla Point, Panama Bay (USNM E 18758; Centroid Latitude: 8.97, Centroid Longitude: -79.52)
-reef off Old French Fort, Panama Bay (USNM E 25603)
-Farfan Point, Panama Bay (USNM E 18818; Centroid Latitude: 8.93, Centroid Longitude: -79.57, depth 0 to 2 m)
-Rio Mar, Gulf of Panama (USNM E 25095)
-West side of Pedro Gonzales Island, Perlas Archipelago (USNM E 25646; Centroid Latitude: 8.3800, Centroid Longitude: -79.0983, from the rocky intertidal zone)
Mortensen, T. (1943). A monograph of the Echinoidea 3(3). Camarodonta 2. Copenhagen. 446 pp., 215 figures, 66 pls; pages: 373-381.
M. A. McCartney, G. Keller, H. A. Lessios. (2000). Dispersal barriers in tropical oceans and speciation in Atlantic and eastern Pacific sea urchins of the genus Echinometra. Molecular Ecology 9: 1391-1400.
Echinometra macrostoma (Lütken, 1864) (subjective junior synonym)
Echinometra rupicola A. Agassiz, 1863 (subjective junior synonym)
Echinometra van brunti A. Agassiz, 1863 (incorrect subsequent spelling)
Echinometra van-brunti A. Agassiz, 1863 (incorrect subsequent spelling)
Ellipsechinus macrostomus Lütken, 1864 (subjective junior synonym)
Heliocidaris stenopora H.L. Clark, 1912 (subjective junior synonym)
Toxocidaris stenopora (H.L. Clark, 1912) (subjective junior synonym)
