新月甲尾袋鼠（Onychogalea lunata），又名弯月距尾袋鼠、圆尾兔袋鼠或新月刺尾䶈，是一种生活在澳洲林地及丛林的甲尾沙袋鼠。牠们的毛皮像丝，尾巴上有刺。牠们的大小如野兔，高15吋，是甲尾沙袋鼠中最细小的。当被追捕时，牠们会寻找空心树来躲藏。牠们会从底部进入空心树中，往上攀，并逃到树上。牠们奔跑时会提起及旋转前臂。

新月甲尾袋鼠于1900年前在西澳州西南部很普遍，但自1908年开始大幅下降。最后的标本是于1927年或1928年在纳拉伯平原捉到活的新月甲尾袋鼠。这只袋鼠被送到悉尼的塔隆加动物园，后来则送到澳洲博物馆。牠们一直在干旱的环境生存至1950年代，并相信约于1956年因赤狐的扩散而灭绝。

The crescent nail-tail wallaby (Onychogalea lunata) was a nail-tail wallaby that lived in the woodlands and scrubs of the west and centre of Australia. It had silky fur and, like other nail-tail wallabies, had a horny spur at the tip of its tail. It was the size of a hare and was the smallest nail-tail wallaby at about 15 inches tall. When it was chased, it tended to seek refuge in a hollow tree. It entered at the bottom, clambered up and appeared at an opening high above. While running, the species held its forelimbs awkwardly and moved them in a rotary motion.