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This research aims to clarify the taxonomy of the edible rock scallop, Spondylus limbatus, using molecular and morphological analyses.

Molecular identification of the edible rock scallop, Spondylus limbatus (Bivalvia: Spondylidae) from the southwestern Gulf of California

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This research aims to clarify the taxonomy of the edible rock scallop, Spondylus limbatus, using molecular and morphological analyses.
Combined morphological and molecular analysis of Spondylus limbatus specimens from the southwestern Gulf of California.
Phylogenetic analysis utilizing maximum likelihood and Bayesian Inference on 28S rRNA and 16S rRNA markers.
Assessment of genetic distances and intraspecific variability among specimens.
Phylogenetic analysis confirmed the monophyly of Spondylus and identified S. limbatus as a distinct clade.
Interspecific genetic distances were found to be 2.5–3.4% for 28S rRNA and 7.6–15.7% for 16S rRNA.
Intraspecific variability was 0.0%, confirming the stability of these genetic markers for species identification.

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Identifies Spondylus limbatus using molecular tools, implying better management for fisheries and conservation.

Aguilar-Estrada et al. (2026) studied this question.

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