Bulletin of the National Science Museum, 第 17 巻

adamsii adanal setae Akita Prefecture AKMG anal setae apex apical arm number ASAMA BALOGH basal Blenniidae branches Bryozoa carapace Cathaysia cells Chaetophyllopsis chaetotaxy chitinous chromosomes cortical bundles crab cryptocyst diploid diploid chromosome number distal dorsal elytra family Oripodidae fishes Flustra Formation fossil frontal genera genital setae genito-anal genus Gigantopteris nicotianaefolia Guptioxylon gymnocyst HARMER Herzogianthus Hokkaido Holotype Honshu HUZIOKA et UEMURA Iwate Prefecture Japan Japanese japonica karyotype Kurosawagawa lateral leaf bases leaves lobes longa MAHUNKA main bundles male margin Membranipora middle Miocene National Science Museum notogastral setae NSM-PP Occurrence and collection opesia Oripoda pairs of genital parapodium Paratype Pentoxylon sahnii perianth periderm plants Plate posterior Prefecture pronotum protojaponica proximal Ptilidiaceae Salix Sanzugawa flora sanzugawaensis Scopura secondary veins segments setae Shimoshinden species specimens spines stem SUZUKI Taeniopteris TANAI Text-fig thick Tokyo total length Transverse section Truncopes tubercles UÉNO ventral wide xylem zooecia Zool