Wiktionary
n. (taxlink Pentalagus furnessi species noshow=1), a dark-furred rabbit found on two islands (Amami and Toku-no-Shima) in southern Japan. A nocturnal, forest-dwelling animal with short legs, a somewhat bulky body, rather large and curved claws. Its ears are significantly smaller than those of other rabbits or hares.
Wikipedia
The Amami rabbit (Pentalagus furnessi; ), or , also known as the Ryukyu rabbit, is a primitive, dark-furred rabbit which is only found in Amami Ōshima and Toku-no-Shima, two small islands between southern Kyūshū and Okinawa in Kagoshima Prefecture (but actually closer to Okinawa) in Japan. Often called a living fossil, the Amami rabbit is a living remnant of ancient rabbits that once lived on the Asian mainland, where they died out, remaining only on the two small islands where they survive today.