Researchers have identified two new species in the genus Bogidiella, small shrimp-like amphipods that live in subterranean aquatic environments, from cave waters on the Ryukyu Islands, a subtropical island chain in southwestern Japan. These creatures are clear products of their underground aquatic environment, often lacking pigmentation and eyes, with elongated appendages and reduced swimming legs, called pleopods.
Biologists from Hiroshima University found two previously unknown cave species on the islands of the Japanese Archipelago Ryukyu, with no eyes or pigmentation and no longer more than 3.2 mm long.