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Recent surveys of shallow subtidal soft-bottom habitats of Oman and the Red Sea coast of Saudi Arabia have uncovered several crabs new to science. Stemming from these efforts, two crab species are herein described as new to science. The first is a new pinnotherid crab, Indopinnixa arabica n. sp., from northern Oman. The other is a new species of varunid crab, Gopkittisak ngankeeae n. sp., from northern, eastern and southern Oman. Additionally, the first known males of another varunid crab, Brankocleistostoma fossulum (Barnard, 1955), are described and illustrated based on material from eastern Oman and southern Saudi Arabia, also representing a new record of the species for the Arabian region.
Lasley et al. (2024) studied this question.