Originally described from Japan, and found uncommonly in Eastern Australia down to Sydney. Also found in New Caledonia and northern NZ
References and Publications
Baba, K., Abe, T. 1975 Comments on further specimens of Favorinus tsuruganus Baba & Abe from Echizen-cho near Tsuruga Bay, Japan (Nudibranchia: Eolidoidea: Favorinidae), Publications of the Seto Marine Biological Laboratory, 22(1-4) (p.117)
Baba, K., Abe, T. 1964 Record of Favorinus tsuruganus n. sp., from Tsuruga Bay, Japan (Nudibranchia - Eolidoidea), Publications of the Seto Marine Biological Laboratory, 12(2) (p.163)
Key to Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species.
They have been adopted to give an approxomation of the range of each species within New Zealand.
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island