- ↑ Toriba, Michihisa (1991) Karyotypes of two colubrine snakes, Entechinus semicarinatus and Dinodon orientalis, Snake 23: 1-5
- ↑ Boulenger, G.A. (1893) Catalogue of the snakes in the British Museum (Nat. Hist.) I., London (Taylor & Francis), 448 pp.
- ↑ 3.0 3.1 Hilgendorf,F. (1880) Bemerkungen über die von ihm in Japan gesammelten Schlangen nebst Beschreibungen zweier neuer Schlangenarten., Sitzungsber. Ges. Naturf. Fr. Berlin1880 (8): 111-121
- ↑ Günther,C.A.L.G. (1880) Description of Ophites japonicus, a new snake from Japan., Ann. Mag. nat. Hist. (5) 6: 462
- ↑ 5.0 5.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)
- ↑ TIGR Reptile Database . Uetz P. , 2 Oktubre 2007