New species of Trophoniella from Shimoda, Japan (Annelida, Flabelligeridae)

Collection: Pensoft Publishers

Keywords: Nabeta Bay · Topics: Marine Biology and Ecology Research, Marine and coastal ecosystems, Microbial Community Ecology and Physiology

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.

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