Systematic revision of Nacella (Patellogastropoda: Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America

Key Points

• This research aims to clarify the evolutionary relationships within the Nacella genus through a complete phylogenetic analysis and to describe a new species.
• Conducted molecular analysis of DNA sequences to determine phylogenetic relationships.
• Systematically revised taxonomy based on genetic and morphological data.
• Included specimens collected from the southern tip of South America.
• Identified and described a new species of Nacella.
• Provided a robust phylogenetic tree clarifying evolutionary relationships among species in Nacella.
• Revised the taxonomy and classification of several existing Nacella species.