A recent submersible dive on the southern slope of Aguni Knoll, central Okinawa Trough has led to a discovery of two rare species of stalked crinoids, Proisocrinus ruberrimus and Naumachocrinus hawaiiensis, both of uncertain taxonomic affinity. The

Two new genera and four new species of 10-armed Bourgueticrinina are described. Cingocrimis radicatus gen. et sp. n. with sharp median restriction of cup was found off the Commander Islands at a depth of 4570 m. Scptocrinus disjunctus gen. et sp. n. with

Two practical, illustrated, dichotomous keys to the 29 genera of living stalked crinoids are provided: one for entire animals and one for stalk ossicles and fragments. These are accompanied by (1) an overview of taxonomically important morphology, and