Histocidaris Variabilis
''Histocidaris'' is a genus of sea urchins in the family Histocidaridae. Some species are known from the fossil record. Species * ''Histocidaris acutispina'' Mortensen, 1927 * ''Histocidaris australiae'' Mortensen, 1928 * '' Histocidaris carinata'' Mortensen, 1928 * '' Histocidaris cobosi'' (A. Agassiz, 1898) * ''Histocidaris crassispina'' Mortensen, 1928 * ''Histocidaris denticulata'' Koehler, 1927 * ''Histocidaris elegans'' (A. Agassiz, 1879) * ''Histocidaris formosa'' Mortensen, 1928 * ''Histocidaris geneffensis'' Lambert, 1932 † * ''Histocidaris longicollis'' Hoggett & Rowe, 1986 * ''Histocidaris magnifica'' Mortensen, 1928 * ''Histocidaris mckayi'' Fell, 1954 † * ''Histocidaris misakiensis'' (Yoshiwara, 1898) * ''Histocidaris nuttingi'' Mortensen, 1926 * ''Histocidaris oranensis'' Lambert, 1931 † * ''Histocidaris purpurata'' (Thomson, 1872) * ''Histocidaris recurvata'' Mortensen, 1928 * ''Histocidaris sharreri ''Histocidaris'' is a genus of sea urchins in the fam ...
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