title: A new genus and new species of family Antedonidae (Echinodermata: Crinoidea) from southern Japan.
abstract: A new genus and new species of antedonid comatulid is described from southern Japan. Belonometra n. gen. has a unique appearance with ten long arms, numerous cirri, and remarkably long and crowded pinnules. The new genus shares some characters with subfamily Heliometrinae. However, the comparative length of pinnules, which is a diagnostic character to determine subfamily Antedonidae, is different. The subfamily into which the new genus should be placed is unclear.
authors.affiliation: Biological Institute on Kuroshio, 560 Nishidomari, Otsuki, Kochi 788-0333, Japan Present address: Molecular Invertebrate Systematics and Ecology Laboratory, Faculty of Science, University of the Ryukyus, 1 Senbaru Nhishihara, Okinawa 903-0213, Japan.; Email: obuchitarou@yahoo.co.jp.
authors.forename: Masami
authors.initials: M
authors.lastname: Obuchi
authors.affiliation: Misaki Marine Biological Station, Graduate School of Science, The University of Tokyo, 1024 Koajiro, Misaki, Miura, Kanagawa 238-0225, Japan.; Email: unknown.
authors.forename: Akihito
authors.initials: A
authors.lastname: Omori
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D004447:Echinodermata / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D017753:Ecosystem; D007564:Japan; D009929:Organ Size