Collecting site

Okushiri Island, Japan

latitude: 42.168056     42 10 05 N
longitude: 139.463058     139 27 47 E

[Precision of location: Alexandria Digital Library (with NGA GNDB data)]
[Site Named Here by name of island, bay, strait, lake, river, or stream, etc., named in source publication]

Collected here:

Bdellocephala borealis Kawakatsu, 1978	Sep 11, 1957			Twelve specimens, both sexually mature and immature, were collected from the shore of Takakusa-numa Pond, Okushiri Island.
Dugesia japonica Ichikawa & Kawakatsu, 1964	1974 or earlier			South and Central Hokkaido (seaboard and the Lake Onuma districts in the Oshima Peninusula, northeastern part of the Lake Shikotsu-ko district, the Erimo Cape, the Hidaka Mountains, the Mts. Daisetsu district and the southern part Kitami Mts.)
Phagocata vivida (Ijima & Kaburaki, 1916)	1974 or earlier			South and Central Hokkaido (seaboard and the Lake Onuma districts in the Oshima Peninusula, northeastern part of the Lake Shikotsu-ko district, the Erimo Cape, the Hidaka Mountains, the Mts. Daisetsu district and the southern part Kitami Mts.)
Polycelis (Polycelis) sapporo (Ijima & Kaburaki, 1916)	1974 or earlier			South and Central Hokkaido (seaboard and the Lake Onuma districts in the Oshima Peninusula, northeastern part of the Lake Shikotsu-ko district, the Erimo Cape, the Hidaka Mountains, the Mts. Daisetsu district and the southern part Kitami Mts.)
Polycelis auriculata Ijima & Kaburaki, 1916	1974 or earlier			South and Central Hokkaido (seaboard and the Lake Onuma districts in the Oshima Peninusula, northeastern part of the Lake Shikotsu-ko district, the Erimo Cape, the Hidaka Mountains, the Mts. Daisetsu district and the southern part Kitami Mts.)