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New crab with star-shaped outgrowths discovered in Taiwan

30 / 08 / 2017, Mongabaycom News

A small seamount by Peng-Chia-Yu Island, located 60 kilometers (~37 miles) off Taiwan, is prized for its red corals — corals with red or pink skeletons, popularly used for jewelry. From these red coral fishing grounds, scientists have collected a new species of crab: an orange crustacean covered in numerous tiny, star-shaped protrusions. The crab has also been discovered in the Philippines. In a new study published in the journal ZooKeys, scientists have named the crab Pariphiculus stellatus, from the Latin word stellatus meaning ‘starry’. The starlike outgrowths change with age, the researchers write in a statement, “becoming shorter, blunter and mushroom-shaped to resemble wart-like outgrowths and granules. Regardless of their sex, as the crabs grow larger, their carapaces also get proportionately rounder and wider.” The new species Pariphiculus stellatus has star-like outgrowths on its body. Photo by Dr. Peter K. L. Ng. The crab’s orange color varies too. While some specimens of the crab that the scientists collected were dull orange with white patches, others had pale or intense orange shells, with white spots covering whole or part of the tiny protrusions. The underside of the crab’s body is typically dirty white to light brown, authors Peter Ng of National University of Singapore and Ming-Shiou Jeng of the Biodiversity Research Center, Academia Sinica, Taiwan, write in the paper. In the same study, the scientists report the first-ever record of a rare crab species — Acanthodromia margarita — that they collected from the red coral beds. The crab was previously…

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