New species of Trophoniella from Shimoda, Japan (Annelida, Flabelligeridae).
Trophoniella hephaistos sp. n. was collected from a tank irrigated with seawater pumped directly from Nabeta Bay, Japan. This species is discriminated from other Trophoniella by having dorsal tubercles, a tongue-shaped branchial plate, a tunic covered with large sediment grains dorsally and ventrally, having eyes, and anchylosed neurohooks starting from chaetigers 17-20. This is the first record of Trophoniella from Japanese waters. Identification keys to species of Trophoniella and four gene sequences (COI, 16S, 18S, 28S) of this species are provided. Phylogenetic analysis was conducted to clarify phylogenetic position of Trophoniella in Flabelligeridae using four genes.
Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan; Department of Marine Biodiversity Research, Japan Agency for Marine-Earth Science and Technology, Yokosuka 237-0061, Japan; Department of Natural History Sciences, Graduate School of Science, Hokkaido University, N10 W8, Sapporo 0060-0810, Japan.
Naoto
N
Jimi
Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima 739-8528, Japan; Department of Marine Biodiversity Research, Japan Agency for Marine-Earth Science and Technology, Yokosuka 237-0061, Japan.
Yoshihiro
Y
Fujiwara
Nabeta Bay; Polychaeta; tank; taxonomy
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