Etymology and distribution of 瀬貝.

Segai 【瀬貝】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Ehime-ken , Oosaka-fu , Yamaguchi-ken .

① Because it lives long for estimation. Ehime-ken Nishiuwa-gun Ikata-chou It is distributed in Ninomitsu .

② things . Kyouto-fu Kyouto-shi Shinto priest of Kitano Tenmangu Shrine in Kamigyo-ku said that he called it from Chosei-bou after the separation of the Buddha and Buddha in 1868.

Sekai 【瀬貝】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Aomori-ken Higashitsugaru-gun Hiranai-machi . There is Nagasu as a man's name.