komori-nezumi 子守鼠

Translation

komori-nezumi means "Opossum" in English.

Possum vs. Opossum

In some places, the words Possum and Opossum are synonymous. In other places, however, Possum refers to animals of the suborder Phalangeriformes while Opossum refers to animals of the order Didelphimorphia.

komori-nezumi written with kanji is 子守鼠.
This word contains non-jouyou kanji 常用漢字.

komori-nezumi written with katakana is コモリネズミ.
komori-nezumi written with hiragana is こもりねずみ.

Beware: some kanji that are difficult to handwrite are easy to type on the computer, which may skew the usage statistics.