Population-level morphological variation of Anisotremus interruptus (Gill, 1862) (Perciformes: Haemulidae) in the Tropical Eastern Pacific, with the description of two new species

Research reveals significant morphological variation within the species Anisotremus interruptus (Perciformes: Haemulidae) in the Tropical Eastern Pacific, leading to the identification of two new species: A. perezponcedeleoni from the Revillagigedo Archipelago and A. espinozai from the Galapagos Archipelago-Cocos Island. This discovery aligns with prior genetic studies indicating a species complex within A. interruptus, suggesting its taxonomic diversity was previously underestimated. The study employed comparative analysis of meristic and morphometric traits to assess population-level differences, providing concrete evidence for these new species distinctions.

ACEVEDO-ÁLVAREZ, E. A., RUIZ-CAMPOS, G., & DOMÍNGUEZ-DOMÍNGUEZ, O. (2021). Population-level morphological variation of Anisotremus interruptus (Gill, 1862) (Perciformes: Haemulidae) in the Tropical Eastern Pacific, with the description of two new species. Zootaxa, 4975(1). https://doi.org/10.11646/zootaxa.4975.1.5