basis of record
Mortensen, T. (1951). A Monograph of the Echinoidea. V, 2. Spatangoida II. Amphisternata II. Spatangidæ, Loveniidæ, Pericosmidæ, Schizasteridæ, Brissidæ, 593 pp., C. A. Reitzel, Copenhagen.
page(s): 333 [details]
additional source
Kier, P. M. & Lawson, M. H. 1978. Index of living and fossil echinoids 1924-1970. Smithsonian Contributions to Paleobiology 34, 1-182., available online at https://doi.org/10.5479/si.00810266.34.1
page(s): 109 [details] Available for editors
Paratype MCZ 5045, geounit Japanese Exclusive Economic Zone [details]
From editor or global species database
Distribution Japan [details]