Annelid Diversity: Historical Overview and Future Perspectives

Annelida is a ubiquitous, common and diverse group of organisms, found in terrestrial, fresh waters marine environments. Despite the large efforts put into resolving evolutionary relationships these other Lophotrochozoa, delineation basal nodes within group, are still unanswered. holds an enormous diversity forms biological strategies alongside number species, following Arthropoda, Mollusca, Vertebrata perhaps Platyhelminthes, among species most rich phyla Metazoa. The currently accepted annelid changes rapidly when taxonomic groups revised due to synonymies descriptions new species. also experiencing recent increase numbers as consequence use molecular taxonomy methods, which allows entities complexes. This review aims at succinctly reviewing state-of-the-art summarizing main systematic revisions carried out group. Moreover, it should be considered introduction papers that form this Special Issue on Systematics Biodiversity Annelids.