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Arthropods, 2026, 15(1): 23-35
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Article

Phylogenetic insights into the evolution of sound production in spiny lobsters (Palinuridae)

Daniel Conley1,2
1ScrippsInstitution of Oceanography, San Diego, California, USA
2Neptune Tide, San Diego, California, USA

Received 13 December 2022;Accepted 5 January 2023;Published online 30 August 2025;Published 1 March 2026
IAEES

Abstract
This study investigates theevolutionary lineage and sound production mechanisms of spiny lobsters (Palinuridae), distinguishing between Stridentes, those capable of producing a rasping sound, and Silentes, those that do not. Utilizing comprehensive gene analyses (including COI, 12S, 16S, 18S, 28S, H3, NaK, PEPCK, SSR), this research seeks to resolve the phylogenetic relationships within the Palinuridae family. The methodology encompassed cataloguing all available gene information, alignment, and concatenation into a single dataset for a rigorous maximum likelihood analysis. The results challenge previous understandings, revealing Stridentes as a paraphyletic group from which Silentes emerged. This study proposes a novel phylogeny for the Palinuridae to the genus level, highlighting the need for further sampling and advances in gene sequencing to refine these findings. This comprehensive approach offers a clearer picture of the evolutionary history of sound production in spiny lobsters and their phylogenetic relationships, contributing to a better understanding of arthropod evolution and the intricate mechanisms of sound production.These results complement recent mitogenomic studies that reveal cryptic lineages within widespread species, underscoring the need for ongoing taxonomic revision within Palinuridae and for deeper study of the evolutionary role of sound production.

Keywords spiny lobsters;sound production;phylogenetic analysis;Palinuridae;Stridentes;Silentes.


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