Invasion

Invasion Description

None

Geographic Extent

Hokkaido/Japan/Akkeshi Pacific Ocean (Utinonmi 1943, cited by Ashton 2006); off Sendai/Japan/Pacific Ocean (1994, Sano et al. 2003, 38, 25, 20 N, 141, 37, 22 E); Usujiri, Hokkaido/Japan/Pacific Ocean (Hosono and Munehara 2001)