Carrerette, Orlemir; Bergamo, Gilberto; Shimabukuro, Maurício; Jimi, Naoto; Fujiwara, Yoshihiro; Sumida, Paulo Y. (2026). Hitchhiking in the deep: A new Amphisamytha species (Annelida: Ampharetidae) riding on widespread squat lobster at hydrothermal vents in the Okinawa Trough (NW Pacific). Deep Sea Research Part I: Oceanographic Research Papers. 228: 104654: 1-10.

559920

10.1016/j.dsr.2026.104654 [view]

Carrerette, Orlemir; Bergamo, Gilberto; Shimabukuro, Maurício; Jimi, Naoto; Fujiwara, Yoshihiro; Sumida, Paulo Y.

2026

228: 104654: 1-10

Publication

https://www.sciencedirect.com/science/article/pii/S0967063726000075

Annelidabase. The article has no ZooBank registration

Available for editors   [request]

Deep-sea hydrothermal vents represent unique ecosystems characterized by extreme environmental conditions and high chemosynthetically-driven productivity. The annelid genus Amphisamytha is a key representative of deep-sea hydrothermal vent communities, exhibiting a wide distribution across chemosynthesis-based environments (CBEs) and diverse habitats, ranging from shallow coastal waters to deep-sea hydrothermal vents. While 13 species have been formally described, including those inhabiting both cold seeps and hydrothermal vents, the phylogeny and biogeography of the genus remain poorly understood, with gaps in molecular data, particularly for its type species, A. japonica. Recent research suggests Amphisamytha may have originated in shallow waters, with cryptic species contributing to its complexity. This study describes a new species, Amphisamytha goemoncola sp. nov., discovered in the hydrothermal vent fields of the Okinawa Trough, Northwestern Pacific, living symbiotically attached to the squat lobster Shinkaia crosnieri. The new species highlights the ecological versatility of the genus and provides new insights into the biodiversity of the region. By addressing key knowledge gaps in its evolutionary history, this work contributes to a better understanding of the biogeography and diversification of Amphisamytha across the Pacific.

Japan
North Pacific

Molecular systematics, Molecular biology
Systematics, Taxonomy

Annelida
Polychaeta

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]