Eucidaris thouarsii (Valenciennes, 1846)

Synonymised taxa: 

Cidaris (Eucidaris) thouarsii (L. Agassiz & Desor, 1846) (transferred to Eucidaris)
Cidaris (Gymnocidaris) thouarsii (L. Agassiz & Desor, 1846) (transferred to Eucidaris)
Cidaris callao Perrier, 1869 (subjective junior synonym)
Cidaris danae L. Agassiz & Desor, 1846 (subjective junior synonym)
Cidaris thouarsii L. Agassiz & Desor, 1846 (transferred to Eucidaris)
Leiocidaris danae (L. Agassiz & Desor, 1846) (subjective junior synonym)
Leiocidaris thouarsii (L. Agassiz & Desor, 1846) (transferred to Eucidaris)

Distribution: 

In Panama this species is common in the Gulf of Panama and the Gulf of Chiriqui in rocky intertidal and subtidal habitats, particulalry under rocks and among Pocillopra spp. coral branches. It has been collected from Venado Beach (USNM E 18760), Naos Island (USNM E 18755), Perico Island (USNM E 25500), Taboga Island (USNM E 4947), the beach at Rio Mar (USNM E 25251), Fort Kobbe Beach (USNM E 14571; Centroid Latitude: 8.90, Centroid Longitude: -79.58), the reef off of French Port (USNM 1017372), Perlas Archipelago (USNM E 6776 & USNM E 6775), and Uva Island (USNM E 25498), eastern Pacific, North Pacific Ocean.

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith