A new species of Expanathura (Crustacea: Isopoda: Anthuroidea) from Iriomote Island, Japan, with a note on male polymorphism

Researchers have identified a new species of isopod, Expanathura monile, from Iriomote Island, part of the Ryukyu Archipelago in Japan. This discovery was made through detailed morphological analysis, distinguishing it from similar species such as E. collaris and E. macronesia by unique traits like a V-shaped pigment band on the female's head, specific antennular flagellum structure, and distinct uropodal features. The study also notes male polymorphism in this species, contributing to the understanding of biodiversity in the region. A revised key for identifying Expanathura species is provided, enhancing taxonomic resources.

SHIRAKI, S., SHIMOMURA, M., & KAKUI, K. (2021). A new species of Expanathura (Crustacea: Isopoda: Anthuroidea) from Iriomote Island, Japan, with a note on male polymorphism. Zootaxa, 5047(3), 377–390. https://doi.org/10.11646/zootaxa.5047.3.9