Three new deep-sea species of Thyasiridae (Mollusca: Bivalvia) from the northwestern Pacific Ocean
The Thyasiridae is one of the species-richest families in the abyssal and hadal zones of the northwestern Pacific Ocean. Many thyasirid species dominate benthic communities in terms of abundance and play an important role in the functioning of deep-sea ecosystems. Most of the thyasirid species in the region are new to science and have not been described. Based on the material collected from 1954 to 2016 by seven deep-sea expeditions, three new species of Thyasiridae (Parathyasira coani sp. nov., P. pauli sp. nov., and Thyasira kharkovensis sp. nov.) are described from the abyssal and hadal zones (3210–7540 m depth) of the Sea of Okhotsk, the Bering Sea, as well as the Kuril-Kamchatka and Japan trenches. The new species are remarkable among their congeners due to the combination of the following characters: an obliquely-rhomboidal shell with a weak and shallow posterior sulcus and a large prodissoconch with sculpture of lamellated folds. Comparisons with related species are provided.
Allen J.A. 2008. Bivalvia of the deep Atlantic. Malacologia 50 (1–2): 57–173. https://doi.org/10.4002/0076-2997-50.1.57
Allen J.A. 2015. Bivalves collected from the bottom of the Philippine Trench, including a new species of Axinulus (Thyasiroidea). Journal of Conchology 42: 175–18.
Belyaev G.M. 1989. Deep-Sea Oceanic Trenches and their Fauna. Nauka Press, Moscow. [In Russian.]
Belyaev G.M. & Mironov A.N. 1977. Bottom fauna of the West Pacific deep-sea trenches. Proceedings of P.P. Shirshov Institute of Oceanology 108: 7–24. [In Russian.]
Brandt A. & Malyutina MV. 2015. The German-Russian deep-sea expedition KuramBio (Kurile Kamchatka biodiversity studies) on board of RV Sonne in 2012 following the footsteps of the legendary expeditions with RV Vityaz. Deep-Sea Research Part II: Topical Studies in Oceanography 111: 1–9. https://doi.org/10.1016/j.dsr2.2014.11.001
Brandt A., Elsner N.O., Malytina M.V., Brenke N., Błażewicz M., Golovan O.A., Lavrenteva A.V. & Riehl T. 2015. Abyssal macrofauna of the Kuril-Kamchatka Trench area (Northwest Pacific) collected by means of a camera-epibenthic sledge. Deep-Sea Research Part II: Topical Studies in Oceanography 111: 175–187. https://doi.org/10.1016/j.dsr2.2014.11.002
Brandt A., Alalykina I., Brix S., Brenke N., Błażewicz M., Golovan O.A., Johannsen N., Hrinko A.M., Jażdżewska A.M., Jeskulke K., Kamenev G.M., Lavrenteva A.V., Malyutina M.V., Riehl T. & Lins L. 2019. Depth zonation of Northwest Pacific deep-sea macrofauna. Progress in Oceanography 176: 102131. https://doi.org/10.1016/j.pocean.2019.102131
Brandt A., Brix S., Riehl T. & Malyutina M. 2020. Biodiversity and biogeography of the abyssal and hadal Kuril-Kamchatka trench and adjacent NW Pacific deep-sea regions. Progress in Oceanography 181: 102232. https://doi.org/10.1016/j.pocean.2019.102232
Coan E.V. & Valentich-Scott P. 2012. Bivalve Seashells of Western North America. Marine Bivalve Mollusks from Baja California to Northern Peru. Santa Barbara Museum of Natural History Press, Santa Barbara.
Coan E.V., Scott P.V. & Bernard F.R. 2000. Bivalve Seashells of Western North America. Marine Bivalve Mollusks from Arctic Alaska to Baja California. Santa Barbara Museum of Natural History Press, Santa Barbara.
Dall W.H. 1901. Synopsis of the lucinacea and of the American species. Proceedings of the United States National Museum 23: 779–833. https://doi.org/10.5479/si.00963801.23-1237.779
Downey R.V., Fuchs M. & Janussen D. 2018. Unusually diverse, abundant and endemic deep-sea sponge fauna revealed in the Sea of Okhotsk (NW Pacific Ocean). Deep Sea Research Part II: Topical Studies in Oceanography 154: 47–58. https://doi.org/10.1016/j.dsr2.2018.02.005
Filatova Z.A. 1961. Some new data of bivalve mollusks of the Java Trench. Oceanologya 1: 133–135. [In Russian.]
Filatova Z.A. 1964. A new species of bivalve molluscs from the ultraabyssal of the Pacific. Zoological Journal 43: 1866–1868. [In Russian.]
Filatova Z.A. 1971. On some mass species of bivalve mollusks from the ultra-abyssal zone of the Kuril-Kamchatka Trench. Proceedings of P.P. Shirshov Institute of Oceanology 92: 46–60. [In Russian.]
Fujikura K., Fujiwara Y., Kojima S. & Okutani T. 2002. Micro-scale distribution of mollusks occurring in deep-sea chemosynthesis-based communities in the Japan Trench. Venus 60: 225–236. https://doi.org/10.18941/venus.60.4_225
Fujiwara Y., Kato C., Masui N., Fujikura K. & Kojima S. 2001. Dual symbiosis in the cold-seep thyasirid clam Maorithyas hadalis from the hadal zone in the Japan Trench, western Pacific. Marine Ecology Progress Series 214 :151–159. https://doi.org/10.3354/meps214151
Fukumori H., Hasegawa K. & Kano Y. 2018. Abyssal gastropods in the Sea of Okhotsk (Vetigastropoda and Caenogastropoda). Deep Sea Research Part II: Topical Studies in Oceanography 154: 187–196. https://doi.org/10.1016/j.dsr2.2017.09.013
Huber M. 2015. Compendium of Bivalves 2. A Full-color Guide to the Remaining Seven Families. A Systematic Listing of 8’500 Bivalve Species and 10’500 Synonyms. ConchBooks, Harxheim.
Jamieson A.J. 2015. The Hadal Zone: Life in the Deepest Oceans. Cambridge University Press, Cambridge. https://doi.org/10.1017/CBO9781139061384
Kamenev G.M. 2013. Species composition and distribution of bivalves in bathyal and abyssal depths of the Sea of Japan. Deep-Sea Research Part II: Topical Studies in Oceanography 86–87: 124–139. https://doi.org/10.1016/j.dsr2.2012.08.004
Kamenev G.M. 2015. Composition and distribution of bivalves of the abyssal plain adjacent to the Kuril-Kamchatka Trench (Pacific Ocean). Deep-Sea Research Part II: Topical Studies in Oceanography 111: 188–197. https://doi.org/10.1016/j.dsr2.2014.08.005
Kamenev G.M. 2018a. Bivalve molluscs of the abyssal zone of the Sea of Okhotsk: species composition, taxonomic remarks, and comparison with the abyssal fauna of the Pacific Ocean. Deep-Sea Research Part II: Topical Studies in Oceanography 154: 230–248. https://doi.org/10.1016/j.dsr2.2017.10.006
Kamenev G.M. 2018b. Four new species of the family Propeamussiidae (Mollusca: Bivalvia) from the abyssal zone of the northwestern Pacific, with notes on Catillopecten squamiformis (Bernard, 1978). Marine Biodiversity 48: 647–676. https://doi.org/10.1007/s12526-017-0821-1
Kamenev G.M. 2019. Bivalve mollusks of the Kuril-Kamchatka Trench, Northwest Pacific Ocean: species composition, distribution and taxonomic remarks. Progress in Oceanography 176: 102127. https://doi.org/10.1016/j.pocean.2019.102127
Kamenev G.M. 2020. Three new deep-sea species of Thyasiridae (Mollusca: Bivalvia) from the abyssal plain of the northwestern Pacific Ocean and hadal depths of the Kuril-Kamchatka Trench. PeerJ 8: e10405. https://doi.org/10.7717/peerj.10405
Kamenev G.M., Mordukhovich V.V., Alalykina I.L., Chernyshev A.V. & Maiorova A.S. 2022. Macrofauna and nematode abundance in the abyssal and hadal zones of interconnected deep-sea ecosystems in the Kuril Basin (Sea of Okhotsk) and the Kuril-Kamchatka Trench (Pacific Ocean). Frontiers in Marine Science 9: 812464. https://doi.org/10.3389/fmars.2022.812464
Lubinsky I. 1976. Thyasira dunbari n. sp. (Bivalvia: Thyasiridae) from the Canadian Arctic Archipelago. Journal of the Fisheries Research Board of Canada 33: 1667–1670. https://doi.org/10.1139/f76-212
Malyutina M.V. & Brandt A. 2013. Introduction to SoJaBio (Sea of Japan Biodiversity Studies). Deep-Sea Research Part II: Topical Studies in Oceanography 86–87: 1–9. https://doi.org/10.1016/j.dsr2.2012.08.011
Malyutina M.V. & Brandt A. 2018. First records of deep-sea Munnopsidae (Isopoda: Asellota) from the Kuril Basin of the Sea of Okhotsk, with description of Gurjanopsis kurilensis sp. nov. Deep-Sea Research Part II: Topical Studies in Oceanography 154: 275–291. https://doi.org/10.1016/j.dsr2.2017.12.006
Malyutina M.V., Chernyshev A.V. & Brandt A. 2018. Introduction to the SokhoBio (Sea of Okhotsk Biodiversity Studies) expedition 2015. Deep-Sea Research Part II: Topical Studies in Oceanography 154: 1–9. https://doi.org/10.1016/j.dsr2.2018.08.012
Mironov A.N., Minin K.V., Dilman A.B. & Smirnov I.S. 2018. Deep-sea echinoderms of the Sea of Okhotsk. Deep-Sea Research Part II: Topical Studies in Oceanography 154: 342–357. https://doi.org/10.1016/j.dsr2.2017.10.003
Monin A.S. (ed.) 1983. Research Vessel “Vityaz” and his Expeditions 1949–1979. Nauka Press, Moscow. [In Russian.]
Nicol D. 1965. A new Thyasira (Pelecypoda) from the Ross Sea, Antarctica. Nautilus 78: 79–80. https://doi.org/10.5962/bhl.part.24542
Okutani T. 1968. Bathyal and abyssal Mollusca trawled from Sagami Bay and the south off Boso Peninsula by the R/V Soyo-Maru, 1965–1967. Bulletin of the Tokai Regional Fisheries Research Laboratory 56: 7–55.
Okutani T. 2000. Marine Molluscs in Japan. Tokai University Press, Tokyo.
Okutani T. & Fujikura Y. 2002. Abyssal gastropods and bivalves collected by Shinkai 6500 on slope of the Japan Trench. Venus 60: 211–224.
Okutani T., Fujikura K. & Kojima S. 1999. Two new hadal bivalves of the family Thyasiridae from the plate convergent area of the Japan Trench. Venus 58: 49–54.
Oliver P.G. 2015. Deep-water Thyasiridae (Mollusca: Bivalvia) from the Oman Margin, Arabian Sea, new species and examples of endemism and cosmopolitanism. Zootaxa 3995 (1): 252–263. https://doi.org/10.11646/zootaxa.3995.1.21
Oliver P.G. & Holmes A.M. 2006. New species of Thyasiridae (Bivalvia) from chemosynthetic communities in the Atlantic Ocean. Journal of Conchology 39 (2): 175–183.
Oliver P.G. & Holmes A.M. 2007. A new species of Axinus (Bivalvia: Thyasiroidea) from the Baby Bare seamount, Cascadia Basin, NE Pacific with a description of the anatomy. Journal of Conchology 39 (4): 363–375.
Oliver P.G. & Killeen I.J. 2002. The Thyasiridae (Mollusca: Bivalvia) of the British Continental Shelf and North Sea oil fields: an identification manual. Studies in Marine Biodiversity and Systematics from the National Museum of Wales. BIOMÔR Reports 3: 1–73.
Ostermair L., Brandt A., Haszprunar G., Jörger K.M. & Bergmeier F.S. 2018. First insights into the solenogaster diversity of the Sea of Okhotsk with the description of a new species of Kruppomenia (Simrothiellidae, Cavibelonia). Deep Sea Research Part II: Topical Studies in Oceanography 154: 214–229. https://doi.org/10.1016/j.dsr2.2017.12.008
Payne C.M. & Allen J.A. 1991. The morphology of deep sea Thyasiridae (Mollusca: Bivalvia) from the Atlantic Ocean. Philosophical Transactions of the Royal Society, Series B 334 (1272): 481–562. https://doi.org/10.1098/rstb.1991.0128
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 64: 87–133.
Sattarova V.V. & Aksentov K.I. 2018. Geochemistry of mercury in surface sediments of the Kuril Basin of the Sea of Okhotsk, Kuril-Kamchatka Trench and adjacent abyssal plain and northwest part of the Bering Sea. Deep-Sea Research Part II: Topical Studies in Oceanography 154: 24–31. https://doi.org/10.1016/j.dsr2.2017.09.002
Savilov A.I. 1961. Ecologic characteristics of the bottom communities of invertebrates in the Okhotsk Sea. Proceedings of P.P. Shirshov Institute of Oceanology 46: 3–84. [In Russian.]
Smith E.A., Thomson C.W. & Murray J. 1885. Report on the Lamellibranchiata collected by H.M.S. Challenger during the years 1873–76. In: Thomson C.W. & Murray J. (eds) Report of the Scientific Results of the Voyage of H.M.S. Challenger During the Years 18730–76 Under the Command of Captain George S. Nares and Captain Frank Tourle Thomson. Zoology. Neill, Edinburg / Dublin. https://doi.org/10.5962/bhl.title.109677
Ushakov P.V. 1953. The Fauna of the Sea of Okhotsk and Conditions of Life in it. Academy of Sciences of USSR Press, Leningrad. [In Russian.]
Valentich-Scott P., Powell C.L., Lorenson T.D. & Edwards B.E. 2014. A new genus and species of Thyasiridae (Mollusca, Bivalvia) from deep-water, Beaufort Sea, northern Alaska. ZooKeys 462: 11–26. https://doi.org/10.3897/zookeys.462.6790
Valentich-Scott P., Coan E.V. & Zelaya D. 2020. Bivalve Seashells of Western South America. Marine Bivalve Mollusks from northern Perú to Southern Chile. Santa Barbara Museum of Natural History Monographs, Santa-Barbara.
Verrill A.E. & Bush K.J. 1898. Revision of the deep-water Mollusca of the Atlantic coast of North America, with descriptions of new genera and species. Part. I. Bivalvia. Proceedings of the United States National Museum 20: 775–901. https://doi.org/10.5479/si.00963801.20-1139.775
Zelaya D.G. 2009. The genera Thyasira and Parathyasira in the Magellan region and adjacent Antarctic waters (Bivalvia: Thyasiridae). Malacologia 51: 271–290. https://doi.org/10.4002/040.051.0204
Zelaya D.G. 2010. New species of Thyasira, Mendicula, and Axinulus (Bivalvia, Thyasiroidea) from Sub-Antarctic and Antarctic waters. Polar Biology 33: 607–616. https://doi.org/10.1007/s00300-009-0736-9
Copyright (c) 2023 Gennady M. Kamenev
This work is licensed under a Creative Commons Attribution 4.0 International License.
Creative Commons Copyright Notices
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are NOT ALLOWED TO post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to taxonomic issues.