An interactive key to the Chrysochromulina species (Haptophyta) described in the literature.

We present a general overview of features and technical specifications of an original interactive key web application for the identification of Chrysochromulina species. The list of species, originally described as belonging in the genus Chrysochromulina, is given and recent taxonomic changes in species and genera of the order Prymnesiales are provided. We briefly discuss the interest of such a key for the identification of phytoplanktonic species.