Plectranthias ryukyuensis is a new species of our favorite group of basslets which as the name describes, come from the Ryukyu Islands of southern Japan. The new Ryukyu basslet is closely related to the similar looking Plectranthias sagamiensis which is occasionally enjoyed by rare fish aquarists in Japan.  Unlike the Sagami basslet however, the Ryukyu … Continue reading Plectranthias ryukyuensis, Japan’s Ninth New Species of Perchlet