♀ Snow (transfer 2004)
♀ Shiruku (unknown ≥ 2011)
♂ Genki (unknown ≥ 2005)
♀ unknown (death ≥ 2003)
♀ unknown (death ≥ 2003)
♀ Mohku (death 2003-Jun)
♂ Copen (unknown ≥ 1997)
♂ Mush (death 1994-Mar-03)
♂ Seita (transfer 1993-Apr-22)
♀ Uchi (transfer 1993-Apr-22)
♂ unknown (death 1993-Apr-16)
♂ unknown (death 1992-Oct-12)
♂ Minki (death 1977-Jun-05)
Izu-Mito Sea Paradise was the first facility to display walruses in Japan, receiving three two-year-old males from the Copenhagen Zoo on April 29th, 1977.