Etymology and distribution of 真珠角.

Masuzumi 【真珠角】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Gunma-ken Takasaki-shi , Miyazaki-ken Nobeoka-shi , Nagasaki-ken . Distribution that also includes onion. In Gunma-ken it is Onegi. 利根木 Tonegi reference. Nagasaki-ken Oomura-shi Kushima was in the Edo period in the clan Omura of the Clan Office.