The first record of the poorly known kelp crab species Menaethius orientalis (Sakai, 1969) from the Ryukyu Archipelago is provided based on a full-grown female specimen from Iriomote Island. Comparison with male characters described in previous studies

The Majoidea contains either six, seven, or eight valid families according to different sources. This has resulted in difficulties with the taxonomy and conservation of this superfamily. The Majoidea in Indonesia waters were documented in the past, however,

The Majoidea contains either six, seven, or eight valid families according to different sources. This has resulted in difficulties with the taxonomy and conservation of this superfamily. The Majoidea in Indonesia waters were documented in the past, however,