An interactive identification key to species of Echinoderidae (Kinorhyncha)

Abstract An interactive, continuously updated identification key to species of the large kinorhynch family Echinoderidae has been made available online. The key is based on the DELTA format (DEscription Language for TAxonomy), and provides, with a multiple entry approach, an intuitive and user friendly tool to identify more than 145 echinoderid species. The present short note describes software requirements, how to access the database and keep it updated, and how to use the identification tools.