This species is recorded from the eastern Pacific coast of Panama (see Maluf, 1988), with a depth range of 0 to 128 m (Lessios, 2005).
Verrill, A. E. (1870). On the Geographical Distribution of the Echinoderms of the West Coast of America (and Comparison of the Tropical Echinoderm Faunae of the East and West Coasts of America). Trans. Conn. Acad. Arts and Sci., vol. I, pp. 323-339, 1867. Reprint of Nos. 1-3, with additional footnotes.
Mortensen, T. (1948). A monograph of the Echinoidea 4(2). Clypeasteroida. Copenhagen. 471 pp., 258 figures, 72 pls; pages: 103-105.
Maluf, L. Y. (1988). Composition and distribution of the central eastern Pacific echinoderms. Natural History Museum of Los Angeles County Technical Reports, 2, 1– 242.
Lessios, H. A. (2005). Echinoids of the Pacific Waters of Panama: Status of knowledge and new records. Rev. Biol. Tropical 53 (sup. 3):147-170.
LSID urn:lsid:marinespecies.org:taxname:513197Clypeaster (Stolonoclypus) speciosus Verrill, 1870 (subgeneric subdivision of Clypeaster not accepted by scientific community)
Paratinanthus speciosus (Verrill, 1870) (transferred to Clypeaster)
