eng International Academy of Ecology and Environmental Sciences Arthropods 2224-4255 2026-3-1 15 1 23 35 4 article Daniel Conley 1 2 ScrippsInstitution of Oceanography, San Diego, California, USA Neptune Tide, San Diego, California,USA 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. http://www.iaees.org/publications/journals/arthropods/articles/2026-15(1)/phylogenetic-insights.pdf spiny lobsters sound production phylogenetic analysis Palinuridae Stridentes Silentes