Abstract
The molluscan diversity of deep-sea chemosynthetic ecosystems in Japan has been in general well documented with about 80 described species, of which over half are gastropods (Sasaki et al. 2005; Fujikura et al. 2012; Sasaki et al. 2016). Recently, however, a number of novel hydrothermal vent sites were discovered in the area using multibeam echo-sounding (Nakamura et al. 2015), providing opportunities for new discoveries. As a part of ongoing studies documenting the biodiversity of such sites, we present the first record of Columbellidae from hydrothermal vents, with a new species recovered from Natsu and Aki sites, in the Iheya North hydrothermal field (for map and background on the vent field see Nakamura et al. 2015).
References
Al-Rshaidat, M.M., Snider, A., Rosebraugh, S., Devine, A.M., Devine, T.D., Plaisance, L., Knowlton, N. & Leray, M. (2016) Deep COI sequencing of standardized benthic samples unveils overlooked diversity of Jordanian coral reefs in the northern Red Sea. Genome, 59 (9), 724–737.
https://doi.org/10.1139/gen-2015-0208Araya, J.F., Catalán, R. & Aliaga, J.A. (2016) A new deep-water Astyris species (Buccinoidea: Columbellidae) from the southeastern Pacific. Zootaxa, 4139 (1), 140–144.
https://doi.org/10.11646/zootaxa.4139.1.11Bennett, B.A., Smith, C.R., Glaser, B. & Maybaum, H.L. (1994) Faunal community structure of a chemotrophic assemblage on whale bones in the deep northeast Pacific Ocean. Marine Ecology Progress Series, 108, 205–223.
https://doi.org/10.3354/meps108205Chen, C., Uematsu, K., Linse, K. & Sigwart, J.D. (2017) By more ways than one: Rapid convergence in adaptations to hydrothermal vents shown by 3D anatomical reconstruction of Gigantopelta (Mollusca: Neomphalina). BMC Evolutionary Biology, 17, 62.
https://doi.org/10.1186/s12862-017-0917-zdeMaintenon, M.J. (2014) Taxonomic revision of the species of Parvanachis Radwin, 1968 (Gastropoda: Columbellidae) from the Gulf of Panama. Zootaxa, 3753 (3), 201–225.
https://doi.org/10.11646/zootaxa.3753.3.1Fujikura, K., Okutani, T. & Maruyama, T. (2012) Deep-sea Life - Biological observations using research submersibles. 2nd Edition.Tokai University Press, Tokyo, 487 pp.
García, E.F. (2009) A new Astyris species (Gastropoda: Columbellidae) from the Gulf of Mexico, with notes on the genus. Novapex, 10, 5–8.
Hasegawa, K. (2009) Upper bathyal gastropods of the Pacific Coast of northern Honshu, Japan, chiefly collected by R/V Wakataka-Maru. In: Fujita, T. (Ed.), Deep-sea Fauna and Pollutants off Pacific Coast of Northern Japan. National Museum of Nature and Science Monographs, 39, pp. 225–383.
Levin, L., Gutiérrez, D., Rathburn, A., Neira, C., Sellanes, J., Muñoz, P., Gallardo, V. & Salamanca, M. (2002) Benthic processes on the Peru margin: a transect across the oxygen minimum zone during the 1997–98 El Niño. Progress in Oceanography, 53, 1–27.
https://doi.org/10.1016/S0079-6611(02)00022-8McLean, J.H. & Gosliner, T.M. (1996) Taxonomic Atlas of the Benthic Fauna of the Santa Maria Basin and the Western Santa Barbara Channel. Vol. 9. Mollusca. Part 2. Gastropoda). Santa Barbara Museum of Natural History, Santa Barbara, CA, 228 pp.
Nakamura, K., Kawagucci, S., Kitada, K., Kumagai, H., Takai, K. & Okino, K. (2015) Water column imaging with multibeam echo-sounding in the mid-Okinawa Trough: Implications for distribution of deep-sea hydrothermal vent sites and the cause of acoustic water column anomaly. Geochemical Journal, 49, 579–596.
https://doi.org/10.2343/geochemj.2.0387Okutani, T. (1964) Report on the archibenthal and abyssal gastropod Mollusca mainly collected from Sagami Bay and adjacent waters by the R.V. Soyo-Maru during the years 1955-1963. Journal of the Faculty of Science, University of Tokyo, II, 15, 371–447.
Okutani, T. (2017) Marine Mollusks in Japan. 2nd Edition.Tokai University Press, Tokyo, 1382 pp.
Pelorce, J. (2017) Les Columbellidae (Gastropoda: Neogastropoda) de la Guyane française. Xenophora Taxonomy, 14, 4–21.
Sasaki, T., Ogura, T., Watanabe, H.K. & Fujikura, K. (2016) Four new species of Provanna (Gastropoda: Provannidae) from vents and a seep off Nansei-shoto area, southwestern Japan. Venus, 74, 1–17.
Sasaki, T., Okutani, T. & Fujikura, K. (2005) Molluscs from hydrothermal vents and cold seeps in Japan: A review of taxa recorded in twenty recent years (1984–2004). Venus, 63, 87–133.
Sellanes, J. (2017) Comments on “A new deep-water Astyris species (Buccinoidea: Columbellidae) from the southeastern Pacific” by Araya et al. 2016. Zootaxa, 4247 (1), 55–56.
https://doi.org/10.11646/zootaxa.4247.1.5Smith, C.R., Kukert, H., Wheatcroft, R.A., Jumars, P.A. & Deming, J.W. (1989) Vent fauna on whale remains. Nature, 341, 27–28.
https://doi.org/10.1038/341027a0Squires, R.L. (2015) First report of the Eocene gastropod Mitrella (Bastropia) (Neogastropoda: Columbellidae) from the northeast Pacific and paleobiogeographic implications. The Nautilus, 129, 63–70.