Japanese River Otter Declared Extinct
After not being seen for more than 30 years, the Japanese river otter (Lutra lutra whiteleyi) has been declared extinct by the country's Ministry of the Environment, which also last week declared several other species extinct......
In addition to the river otter, the Ministry of the Environment also declared as extinct a subspecies of the least horseshoe bat (Rhinolophus pumilus miyakonis), which was last seen in 1971. The Japanese subspecies of the Asian black bear (Ursus thibetanus japonicus) was declared extinct on the island of Kyushu, where it has not been seen since 1957 (it persists elsewhere in Japan). One bird species, one insect species, one shellfish species and two plant species were also listed as extinct."
Scientific american extinction countdown blog --> [link]
Note: the Japanese river otter was hunted extensively for it's fur it is believed this, habitat destruction and pollution are responsible for it's extinction.
to quote ecorazzi blog "Farewell Japanese otters it's nothing personal. We're just terrible at giving a shit."