closeup on the endangered riu kiu swordtail salamander, cynops ensicauda popei from riu kiu, japan

amphibia amphibian asia black chordata caudata cynops ensicauda popei ecology endangered japan japanese location nature other pet riu kiu newt salamandridae status sword tailed animal aquatic biology close up closeup conservation endemic fire bellied firebelly green herpetology macro outdoors pettrade predator salamander single swordtailed vertebrate wild wildlife