Chinese box turtle; yellow-margined box turtle
Refers to the species Cuora flavomarginata, a semi-aquatic turtle native to East Asia. The name is usually written in katakana.
As its name suggests, the Chinese box turtle has a rounded carapace.
Katakana spelling is common for animal names and matches usual-kana usage.
Kanji spelling is rare and may not be widely recognized; the katakana form is strongly preferred.
The Japanese name セマルハコガメ literally means 'round-backed box turtle', from 背 (se, 'back'), 丸 (maru, 'round'), and 箱亀 (hakogame, 'box turtle'). The exact derivation is uncertain, but it likely describes the turtle's domed shell.