Kroh, A.; Mooi, R. (2021). World Echinoidea Database. Psammechinus semituberculatus Valenciennes in L. Agassiz, 1846. Accessed at: http://www.marinespecies.org/echinoidea/aphia.php?p=taxdetails&id=569552 on 2024-04-18
basis of recordMortensen, T. (1943). A Monograph of the Echinoidea. III, 2. Camarodonta. I. Orthopsidæ, Glyphocyphidæ, Temnopleuridæ and Toxopneustidæ. vii+553 pp., C. A. Reitzel, Copenhagen. page(s): 456-459 [details]
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