In Panama this species has been collected from Portobelo (no depth data) and Limon Bay, Colon (USNM E 26639; Centroid Latitude: 9.30, Centroid Longitude: -80.42), Caribbean Sea, by the R. V. Oregon, from a depth of 137 m.
Mortensen T. (1928b): A monograph of the Echinoidea. Vol.1 Cidaroidea. C.A. Reitzel, Copenhagen: 1-551, pages: 336-341.
LSID urn:lsid:marinespecies.org:taxname:124268Cidaris affinis Philippi, 1845 (transferred to Stylocidaris)
Cidaris stokesii L. Agassiz & Desor, 1846 (subjective junior synonym)
Leiocidaris affinis (Philippi, 1845) (transferred to Stylocidaris)
Leiocidaris stokesii (L. Agassiz & Desor, 1846) (subjective junior synonym)
Orthocidaris affinis (Philippi, 1845) (transferred to Stylocidaris)
Tretocidaris affinis (Philippi, 1845) (transferred to Stylocidaris)
