About the key: Ophiuroidea is the largest class among extant echinoderms, with over 2,000 described species, assigned to 33 families. In this study, the first identification key to the recently revised families of Ophiuroidea was developed. The key was built by analyzing internal and external skeletal characters of predominantly the type species of each family, including at least two mutually exclusive attributes per family. Illustrations (SEM and digital photos) are included in the key to facilitate the assessment of character states by users. Not only is it the first identification key for the families according to the recently proposed new classification, but this interactive key also assists users in understanding the family level taxonomy of brittle stars.

For more info, please see "Goharimanesh, M., Stöhr, S., Mirshamsi, O., Ghassemzadeh, F., & Adriaens, D. (2021). Interactive identification key to all brittle star families (Echinodermata; Ophiuroidea) leads to revised morphological descriptions. European Journal of Taxonomy, 766, 1-63."

{"references": ["Goharimanesh, M., St\u00f6hr, S., Mirshamsi, O., Ghassemzadeh, F., & Adriaens, D. (2021). Interactive identification key to all brittle star families (Echinodermata; Ophiuroidea) leads to revised morphological descriptions. European Journal of Taxonomy, 766, 1-63."]}