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April 3, 2026Biology LettersOpen Access

Global barcoding of the deep-sea snail genus Phymorhynchus reveals surprising distribution ranges and genetic diversity

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Authors

MZMouyingke ZhangCCChong ChenMWMingda Wu

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Overview

Molecular barcoding reveals significant genetic diversity and broader distribution of deep-sea snails, challenging prior assumptions.

Key Points

  • To assess genetic diversity and distribution of the Phymorhynchus snail genus across different oceanic regions.
  • Conducted molecular barcoding on 180 specimens from the Atlantic, Pacific, and Indian oceans.
  • Performed species delimitation analyses based on genetic data.
  • Correlated genetic findings with morphological traits, particularly egg-capsule characters.
  • Identified six distinct species within the Phymorhynchus genus.
  • Noted broader geographic distributions, with P. starmeri spanning the Indo-West Pacific.
  • Evidence suggests P. moskalevi has a cosmopolitan presence and complex genetic subgroupings.
  • Challenged previous assumptions of isolation by highlighting additional ambient records outside known habitats.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/69cf5cd15a333a821460a65ahttps://doi.org/10.1098/rsbl.2025.0685
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