Three Cases of Anomalously White Risso's Dolphins Grampus griseus in Japan Funasaka, Noriko and Kirihata, Tetsuo and Hosono, Masayuki and Kato, Hidehiro and Ohsumi, Seiji, Mammal Study, 42, 173-178 (2017), DOI:http://dx.doi.org/10.3106/041.042.0307