Abstract / Introduction / Summary:
A poorly known brittle star, Ophioplocus giganteus Irimura and Yoshino, 1999 (Ophiuroidea: Ophiurida: Ophiolepididae), is recorded based on two specimens each collected from coastal waters in Takarajima and Tokunoshima islands, the Ryukyu Islands, Japan. The finding of the species represents first records from both two islands and expands the geographical distribution range northward.
