Annelids offer a diversity of experimentally accessible features making them a rich experimental subject across the biological sciences, including evolutionary

Annelida is a diverse group of animals, commonly referred to as segmented worms and currently comprising around 14000 described species. Found in most marine an

In this Special Issue, we address the state of the art of the systematics of the main annelid groups and the improvements in the diversity they hold, with speci

Annelida, mainly consisting of marine Polychaeta and in faunal and partly parasitic Clitellata, is one the most significant metazoan taxa. Its more than 20.000

Recently, evidence has been accumulated which shows that some of the groups formerly regarded as independent "phyla" such as Pogonophora (now recognized as Sibo