Branchiostegus sanae, a new species of deepwater tilefish (Eupercaria, Branchiostegidae) from the South China Sea

Collection: Pensoft Publishers

Keywords: Bottom fish · Topics: Ichthyology and Marine Biology, Identification and Quantification in Food, Coral and Marine Ecosystems Studies

A new species of deepwater tilefish, Branchiostegus sanae sp. nov., is described based on five specimens collected from the area between the Xisha Islands and Hainan Island, China. This species can be distinguished from congeners by its unique cheek marker and a combination of characteristics. Among the tilefish species known to be distributed in the South China Sea, this species is the only one with vertical stripes on the body. Based on the COI, CytB, and 12S sequences, a maximum-likelihood phylogenetic tree shows that the B. sanae sp. nov. forms a separate clade and is the sister group to the clade consisting of B. sawakinensis, B. albus, B. argentatus, B. biendong, B. japonicus, B. auratus, and B. okinawaensis. A key to the genus Branchiostegus is also compiled.

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