Ise, Y.; Tajiri, R.; Mizuyama, M.; Fujita, Y. Submarine Cave Sponges of the Genus Rhabderemia (Demospongiae, Biemnida, Rhabderemiidae) from the Ryukyu Islands, Southwestern Japan: Rediscovery of R. forcipula And Description of a New Species. Zootaxa 2025, 5569, 365-382.