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On Two New Records of Varunid Crabs (Crustacea: Brachyura: Varunidae) from Southern Taiwan

南臺灣弓蟹類(甲殼類:短尾類:弓蟹科)之兩新記錄種

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摘要


Two new records of the Varunidae, Ptychognathus altimanus (Rathbun, 1914) and Utica gracilipes White, 1847, are reported from southern Taiwan. The present study lists the diagnostic morphological features of P. altimanus and U. gracilipes, and provides a detailed comparison of the juveniles between P. altimanus and the superficially similar Varuna litterata.

並列摘要


報導兩種採自臺灣弓蟹科之新記錄種,分別是Ptychognathus altimanus (Rathbun, 1914)(高掌折顎蟹)與Utica gracilipes White, 1847(細足扁平蟹)。本文列舉此兩種之重要形態特徵,並詳細比較P. altimanus與類似的Varuna litterata (Fabricius, 1798)(字紋弓蟹)其幼蟹之差異。

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