Bathycrinidae is a family of echinoderms in the class Crinoidea. It contains the following genera and species: * Bathycrinus Wyville Thomson, 1872 * Bathycrinus aldrichianus Wyville Thomson, 1877 * Bathycrinus australis AH Clark, 1907 * Bathycrinus australocrucis McKnight, 1973 * Bathycrinus carpenterii (Danielssen & Koren, 1877) * Bathycrinus gracilis Wyville Thomson, 1877 * Bathycrinus mendeleevi Mironov, 2008 * Discolocrinus Mironov, 2008 * Discolocrinus thieli Mironov, 2008 * Monachocrinus AH Clark, 1919 * Monachocrinus aotearoa McKnight, 1973 * Monachocrinus caribbeus (AH Clark, 1908) * Monachocrinus mortenseni Gislén, 1938 * Monachocrinus paradoxus (AH Clark, 1909) * Monachocrinus recuperatus (Perrier, 1885) * Monachocrinus sexradiatus AH Clark, 1919