Refers to the slow-moving, nocturnal primate. The name literally means 'slow monkey'.
See also: ロリス
鈍間猿は夜行性で、ゆっくりと枝を移動する。
The loris is nocturnal and moves slowly along branches.
Compound of 鈍間 (のろま, 'slow, dull') and 猿 (さる, 'monkey'), referring to the animal's slow movements. The exact historical derivation is uncertain.