Etymology and distribution of 今沼.

Imanuma 【今沼】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kagoshima-ken . Distribution that also includes stag beetle.

① Topography . From the upper gate of the gate division system that was in the Edo period. An example of the location of the gate. Kagoshima-ken Kagoshima-shi Kiichi Town, Kagoshima-ken Kimotsuki-gun Minamioosumi-chou Sata Osaki , Kagoshima-ken Kimotsuki-gun Minamioosumi-chou Sata Magome. The name of the gate is from above. The basket is estimated from the lodged land.

② Kagoshima-ken Ichikikushikino-shi Originated from the upper basket (Uwagomori) on the upper stream of the river. In the same era there was a cage gate in the Edo period. The surname is also a cow.