Les matériaux étudiés m'ont été donnés par MM. Suzulu et TAKAI qui ont publié un mémoire sur les couches fossilifères dans les environs de Tako-mati.
D'apres eux, ces couches sont de grès, Pléistocène inférieur, qui contient rarement des lentilles de gravier, et stratigraphiquement, elles se rapprochent rnieux des couches de Dizôdô, de Yamaé ou de Sémata (toutes les trois sont du Pléistocène inférieur) que cellos du Manzakien et du Kiorosien (Pléistocène bupérieur). Et leur faune consiste principalement en éléments japoniques.
Les études des faunes bryozoaires, fossiles et récentes du Japon sont très mal connues, done notre étude sur ces Bryozoaires de Tako-mati aucun rapport sur la détermination de l'âge géologique de cette faune.
Nous avons traité seulement des Bryozoaires encroûtants car l'existence de l'autre sorte de Bryozoaires de cette région n'est pas encore connue.
Nous tenons à témoigner ici notre reconnaissance è MM. Kôiti SUZUKI et Fuyuji TAKAI de l'Institut géologique, Universiteé Impériale à Tokio, qui ont bien voulu me présenter lours échantillons.

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Three fossil species of Callianassa have been described from Japan, all from Hokkaidô; they are Callianassa ezoensis NAGAO, the Upper Cretaceous Hakobuti Sandstone.
C. muratai NAGAO, the Neogene Poronai series and the lower part of the overlying Kawabata series, and C. inornata NAGAO and HUZIOKA, the lower part of the Kawabata.
The species, to be described in the present short note, has been derived from the Palaeogene Isikari series. The Isikari series, underlaid by the Hakobuti and overlain by the Poronai, is subdivided into three parts, the terrestrial and coalbearing Lower Isikari, the marine Middle Isikari or the Wakkanabe bed, and the Upper Isikari which is composed of marine and brackish or fresh-water sediments and intercalated seams of coal. The new Callianassa has been collected from the Wakkanabe bed exposed along the Sorati-gawa in the Isikari coal-field.

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During a field work in the spring, last year, in the Palaeozoic area near Sakari-mati (Kesen-gun, Iwate-ken) in the Kitakami Mountainland, the writer found an interesting fossil now forming the subject of this note in an exposure along the Sakari-gawa at Tyôanzi, Hikoroiti-mura. An examination soon revealed it to be a new form of Conularia MILLER, a genus established on Conularia quadrisulcata SOWERBY from the Bristol limestone in England and now known to have a wide geological range from the Cambrian to the Triassic, attaining its maximum in Gotlandian and Devonian times.
The remains of Conularia are very rare in Japan, and the first record of its occurrence was that of Prof. J. HAYASAKA of the Geological Institute of the Taihoku Imperial University, who found Conularia rectangularis HAYASAKA in a Permian black slate of Imô, YAHAGI-mura, Kesen-gun which is adjacent to the locality of the present writer's material, in association with various kinds of brachiopods, including Leptodus richthofeni KAYSER, of mollusca and fusulinids. The present find which is the second is from a grayish-green fine grained tuffaceous rock of trachytic material of the Tyôanzi group (Lowest Carboniferous), which has abundant brachiopods such as Productus, Spirifer, etc., bryozoas, ammonites and tetracorals.

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As to the fossil elephants, the ancient Japanese naturalists for a long time believed, following the explanation in the Chinese Pents'ao, that they were the skeletons of dragon but later in the Yedo period some scholars grew suspicious about its veracity. The questions of dragons had been variously discussed since 1760 till the so-called “skeletons of dragons” found in Japan were proved to be the ossil remains of elephants in 1811.

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The present article is based on the pyramidellid molluscs of the Pliocene Byôritu beds of Taiwan. The descriptions of the species include the specimens which were newly selected from the shell-sands derived from various localities of the said beds, in addition to those which were treated by the writer in his previous work.
collection which was made by Mr. S. ANDÔ some ten years ago, is now deposited in the Institute of Geology and Palaeontology, Tôhoku Imperial University, Sendai. The present study was carried out by the courtesy of Prof. H. YABE, to whom the writer expresses his hearty thanks.

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[in Japanese]

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