Collecting site

Rishiri Island, Japan

latitude: 45.180557     45 10 50 N
longitude: 141.243057     141 14 35 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	Aug 22-24, 1956			200 specimens, both sexually mature and immature, were collected from an outlet of Hime-numa Pond, Rishiri Island.
Bdellocephala borealis Kawakatsu, 1978	Sep 2-4, 1957			About 1,500 specimens, both sexually mature and immature, were collected from an outlet of Hime-numa Pond, Rishiri Island.
Vannuccia hirutai Tajika, 1981	Jul 31, 1978			Die Insel Rishiri. Die Küste Numaura. Ein Expl.
Bdellocephala borealis Kawakatsu, 1978	Aug 2-5, 1964			About 2,000 specimens, both sexually mature and immature, were collected from an outlet of Hime-numa Pond, Rishiri Island.
Polycelis schmidti (Zabusov, 1916)	1969 or earlier			Middle and South Hokkaaidô (including Rishiri Island).