A new chemosymbiotic bivalve species of the genus Acharax Dall, 1908 (Bivalvia, Solemyida, Solemyidae) from the Haima cold seep of the South China Sea
Authors/Creators
- 1. Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- 2. Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China
- 3. Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China|Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, China|University of Chinese Academy of Sciences, Beijing, China
Description
Solemyidae is an ancient group of protobranch bivalves that typically inhabit unusual environments, such as deep-sea chemosynthetic environments, and are symbiotic with chemoautotrophic and gill-hosted bacteria. In May 2018, a living solemyid bivalve was collected using a remotely operated vehicle at a depth of 1,390 m from the Haima cold seep in the northwestern slope of the South China Sea. Through a comprehensive taxonomic approach combining morphological observations and molecular phylogeny reconstruction of concatenated mitochondrial COI,16S rRNA and 18S rRNA gene sequences, a new species, Acharax haimaensis sp. nov. is identified and described. The discovery of this new species contributes to the diversity of known solemyids in deep-sea chemosynthetic environments.
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