AI Article Synopsis
- Neolepetopsidae is a little-known family of true limpets found in deep-sea environments, consisting of over a dozen species across three genera.
- A newly discovered species from the Haima methane seep in the South China Sea, termed sp. nov., has unique features like a smooth, semi-transparent shell and a distinct radula structure.
- Molecular analysis reveals this new species is unexpectedly related to another family, Lepetidae, indicating that Neolepetopsidae may not be a monophyletic group and suggesting that their radula type could occur in multiple limpet lineages.
Article Abstract
Neolepetopsidae is a little-studied true limpet family only known from deep-sea chemosynthetic ecosystems, containing just over a dozen species in three genera: , , and . Although considered monophyletic by a recent phylogenetic analysis, a lack of sequence linked to morphology casts some uncertainty. Here, we discovered a new species of from the Haima methane seep in the South China Sea, described as sp. nov. The new species is distinct from all other described by its smooth and semi-transparent shell, combined with a radula exhibiting pluricuspid teeth with two cusps. We tested its relationship with other neolepetopsids using a molecular phylogeny reconstructed from the mitochondrial gene, revealing a surprising position nested within Lepetidae, a family with a very different radula morphology. The clade containing lepetids and our new species was recovered sister to other neolepetopsids with sequence data available. This hints at a paraphyletic Neolepetopsidae, and suggests the neolepetopsid-type radula might not be exclusive to one monophyletic group of limpets.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10390325 | PMC |
| http://dx.doi.org/10.6620/ZS.2023.62-26 | DOI Listing |
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