First records of the two caridean families, Gnathophyllidae Dana, 1852 and Hymenoceridae Ortmann, 1890 (Decapoda, Palaemonoidea) from Taiwan

Abstract

The two caridean families, Gnathophyllidae Dana, 1852 and Hymenoceridae Ortmann, 1890, arereported for the first time from Taiwan with three species. One of these,Phyllognathea simplexFujino, 1973, is herein recorded from the only male known for this species. The two otherspecies,Gnathophyllum americanumGuérin-Méneville, 1855 andHymenocera pictaDana, 1852,are widely known circumtropical species, but recently controversy arose if these two species aretruly cosmopolitan or represent species complexes. The morphological characters and coloration ofthe Taiwanese material of these three species are described and illustrated.