Imajima H., Takeda M., Owada M., Kashiwadani H., Kadota Y., Tiba T., Uemura K., Mizoguchi Y., 1986: Natural History Researches of the Hokuriku and San-in District. 6 pp. (in Japanese). Memoirs of the National Science Museum 19: 1-6.
 
HNR 65
Imajima M., Kubodera T., Shinohara A., Kashiwadani H., Kadota Y., Tiba T., Uemura K., Matsumura H., 1993: Preface to the Natural History Researches of Eastern Hokkaido. 6 pp. (in Japanese). Memoirs of the National Science Museum 26: 1-6.