also: あまみとげねずみ
noun
Ryukyu spiny rat
A rodent species (Tokudaia osimensis) endemic to Amami Ōshima; the name is a taxonomic common name.
アマミトゲネズミは奄美大島だけに生息する固有種です。
The Ryukyu spiny rat is an endemic species found only on Amami Ōshima.
Compound of 奄美 (Amami, the island) + 棘 (toge, 'spine') + 鼠 (nezumi, 'rat'). The exact derivation is straightforward; the name describes a spiny rat from Amami.