Table 3.

The cytotypes of M. stelleri and their geographic distribution (juv = juvenile individuals).

No. of cytotype	Number / sex of individuals	Number of metaphase plates	Locality (see sampling sites nos. in Table 1 and Fig. 1)	Region
I	22	551	1–7, 10–12	Sea of Okhotsk; northern Sea of Japan
	(10♀, 10♂, 2 juv)
II	5	271	10, 12, 13	Northern Sea of Japan
	(1 ♀, 2 ♂, 2 juv)
III	3	130	10, 13, 14	Northern Sea of Japan
	(1 ♀, 1 ♂, 1 juv)
IV	3	148	11, 13, 14	Northern Sea of Japan
	(2 ♂, 1 juv)
V	9	420	8, 9, 15	Western Sea of Japan; coastal waters off the southern Kuril Islands
	(3 ♀, 5 ♂, 1 juv)