日本の博物館のこれから 「対話と連携」の深化と多様化する博物館運営 平成 26 ~ 28 年度（全文）

大阪市立自然史博物

INTERSTITIAL POLYCHAETES OF JAPAN. III. SIX SPECIES OF MICROPHTHALMINAE (HESIONIDAE) INCLUDING A NEW SPECIES AND THREE NEW SUBSPECIES

The genera Hesionides and Microphthalmus of the family Hesionidae are known to be regular components of the interstitial polychaete fauna of marine sandy beaches. The former is known to contain nine species, all of which are purely interstitial forms; the latter is composed of nineteen species, most of which are also known to be typical interstitial inhabitants. In the west coast of North Pacific, however, only H. arenaria has been recorded from Japan (Sudzuki, 1976; Westheide, 1977a). In the course of the author's recent research on the interstitial polychaetes along Japanese coasts, he obtained a number of specimens of both genera from various localities. As a result of this research, the present paper reports five species of Hesionides including a new species and two new subspecies, and one species of Microphthalmus which is a new subspecies

INTERSTITIAL POLYCHAETES OF JAPAN II. -A NEW SPECIES OF HESIONURA FROM WESTERN JAPAN-

Hesionura, belonging to the family Phyllodocidae, is a genus mostly composed of interstitial species. Nine species and one subspecies have so far been recorded from various localities in the world. The present paper provides the first record of the genus from Japan. The materials from three localities in western Japan were examined. Their setae were especially observed under the phase contrast microscope of one thousand magnification. The result has revealed that they all represent a single new species, whose type specimens are preserved at the Osaka Museum of Natural History. I would like to express my hearty thanks to Prof. Eiji Harada of the Seto Marine Biological Laboratory for reading the manuscript. Thanks are also due to Mr. Yasuji Sakai of the Nansei Regional Fisheries Research Laboratory who has placed the material at my disposal

Ten Species of Pisione (Annelida : Polychaeta : Pisionidae) from Japan and Evolutionary Trends in the Genus Based on Comparison of Male Copulatory Apparatus

Five new species and three new subspecies of the genus Pisione are described based on material from Japan. In addition, P. parva, newly recorded from Japan, and P. ajricana, once recorded from Japan without description, are described. Results of SEM observations, especially on their male copulatory apparatus, are presented. Japanese fauna with as many as 14 species is summarized. Male copulatory apparatus in the whole genus are compared, and four groups of closely related species are recognized. Their phylogenetic relationships and evolutionary trends are discussed