Abstract
Pleurocope iriomotensis sp. n. and Prethura tuberculata sp. n. are described from Iriomote Island, Ryukyu Archipelago, southern Japan. These are the first records of Pleurocope from the Pacific and of Prethura from the Asian Pacific coast. Pleurocope iriomotensis differs from its congeners in having lateral spine-like processes on pereonite 4 and coxal plates of pereonite 7. Prethura tuberculata can be distinguished from its single congener in having a lateral short projection of protopod of pleopod 2.
Highlights
Iriomote Island (Fig. 1) in the southwestern part of the Ryukyu Archipelago is located in a subtropical climate zone for terrestrial environments, but its marine fauna is more tropical, being strongly influenced by Kuroshio, a prominent warm ocean current
The shallow-water asellote isopods have remained uninvestigated; we have been participating in the faunal survey of the shallow-water asellote isopods of Iriomote Island
Collections of isopods were obtained by the Collaborative Research Program funded by the Ryukyu University in Iriomote Island in 2012
Summary
Iriomote Island (Fig. 1) in the southwestern part of the Ryukyu Archipelago is located in a subtropical climate zone for terrestrial environments, but its marine fauna is more tropical, being strongly influenced by Kuroshio, a prominent warm ocean current. Body (Fig. 2) 1.6 times as long as maximum width (including spine-like processes), widest at pereonite 3, with many small granules on dorsum, without dorsal setae.
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