Taxonomic revision and molecular phylogeny of Pisa (Decapoda: Majoidea: Epialtidae), including the description of a new genus of Pisinae | Revisión taxonómica y filogenia molecular de Pisa (Decapoda: Majoidea: Epialtidae), incluyendo la descripción de un nuevo género de Pisinae

[EN] The spider crabs of the genus Pisa Leach, 1814 (Epialtidae: Pisinae) are reviewed in this study based on morphological and molecular data (16S and COI genes). From these results, a new genus, Afropisa n. gen., is established for the clade composed of Pisa carinimana Miers, 1879, Pisa calva Forest and Guinot, 1966 and Pisa sanctaehelenae Chace, 1966 based on carapace morphology, rostrum, pterygostomian tubercles and male gonopod 1. Additionally, Lissa chiragra (Fabricius, 1775) is transferred to Pisa based on morphological (adults and larvae) and molecular evidence. Furthermore, the status of Pisa hirticornis (Herbst, 1804) is discussed and clarified. The phylogenetic relationships between several Pis-inae Dana, 1851 genera, as revealed by molecular data, are discussed. An illustrated identification key of eastern Atlantic and Mediterranean species of Pisinae is provided.

[ES] Los cangrejos araña del género Pisa Leach, 1814 (Epialtidae: Pisinae) son revisados en este estudio basándonos en datos morfológicos y genéticos (genes 16S y COI). A partir de estos resultados, un nuevo género, Afropisa n. gen., es establecido para el clado compuesto por Pisa carinimana Miers, 1879, Pisa calva Forest and Guinot, 1966 y Pisa sanctaehelenae Chace, 1966 basado en la morfología del caparazón, rostro, tubérculos pterigostomianos y gonopodo 1 masculino. Además, Lissa chiragra (Fabricius, 1775) es transferida a Pisa basándonos en evidencias morfológicas (adultos y larvas) y moleculares. Adicionalmente, el estatus de Pisa hirticornis (Herbst, 1804) es discutido y clarificado. Se aporta una clave ilustrada de identificación para las especies de Pisinae Dana, 1851 del Atlántico oriental y del Mediterráneo.

We would like to thank the MEGALOPADN (CGL2009-11225) project, funded by the “Ministerio de Economía y Competividad (MINECO)” Spanish Plan R+D+I and the European Regional Development Fund of the EU, for providing us with some sequences obtained within the framework of the project.

Peer reviewed