Species Cidaris circinata von Martens, 1866 (nomen nudum, von Martens refers to a specimen named C. circinata in the Amsterdam coll'n, but does not describe it)
Kroh, A. & Mooi, R. (2018). World Echinoidea Database. Cidaris Leske, 1778. Accessed at: http://marinespecies.org/echinoidea/aphia.php?p=taxdetails&id=123377 on 2019-02-21
original description(ofOrthocidaris A. Agassiz, 1863)Agassiz, A. (1863). List of the echinoderms sent to different institutions in exchange for other specimens, with annotations. <em>Bulletin of the Museum of Comparative Zoölogy at Harvard College.</em> 1: 17-28. page(s): 17 [details]
basis of recordHansson, H.G. (2001). Echinodermata, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i>. 50: pp. 336-351. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality