CONTENTS 目次

Volume 7, Numbers 1-2

目次　　CONTENTS

原著　　Original Articles

柏雄介・阿部司・福田宏：岡山県におけるヒレイケチョウガイとイケチョウガイの交雑種とみられる個体（二枚貝綱：イシガイ目：イシガイ科）の確認
Yusuke KASHIWA, Tsukasa ABE and Hiroshi FUKUDA: Occurrences of the possible hybrids of Sinohyriopsis schlegelii (Martens, 1861) and Sinohyriopsis cumingii (Lea, 1852) (Bivalvia: Unionida: Unionidae) in Okayama Prefecture, western Japan

...........................................1

山田真悠子・小野廣記：島根県隠岐諸島におけるスリガハマ（二枚貝綱：マルスダレガイ科）の産出記録
Mayuko YAMADA and Hiroki ONO: A new distribution record of Tapes platyptycha Pilsbry, 1901 (Bivalvia: Veneridae) in the Oki Islands, Shimane, western Japan

..........................................5

福田宏・池田等・石田惣・芳賀拓真：アコヤエビス（古腹足類：ニシキウズ目：エビスガイ科）の学名 Akoya akoya (Y. Hirase, 1922) の適格性と有効性，ならびに胎殻・頭部―腹足・歯舌・顎板の形態
Hiroshi FUKUDA, Hitoshi IKEDA, So ISHIDA and Takuma HAGA: The availability and validity of Akoya akoya (Y. Hirase, 1922) (Vetigastropoda: Trochida: Calliostomatidae), with notes on the morphology of the protoconch, head-foot, radula and jaw plate

.........................................11

福田宏：山口県萩市で採集されたニシキサザエ（古腹足類：ニシキウズ目：リュウテン科），および Callopomella Kira, 1959 の分類学的地位
Hiroshi FUKUDA: Turbo (Carswellena) excellens Sowerby III, 1914 (Vetigastropoda: Trochida: Turbinidae) collected from Hagi, Yamaguchi Prefecture, western Honshu, Japan, with notes on the taxonomic status of Callopomella Kira, 1959

..........................................27

澤田直人・齊藤匠・福田宏：山梨県河口湖におけるマメタニシ（新生腹足類：クビキレガイ上科：エゾマメタニシ科）の産出
Naoto SAWADA, Takumi SAITO and Hiroshi FUKUDA: Occurrence records of 'Parafossarulus' manchouricus japonicus (Pilsbry, 1901) (Caenogastropoda: Truncatelloidea: Bithyniidae) from Lake Kawaguchi, Yamanashi Prefecture, Japan

..........................................41

内野透・布部淳一・徳丸直輝・野元彰人：高知県宿毛市で発見されたオイランカワザンショウ（腹足綱：カワザンショウ科）
Toru UCHINO, Jun-ichi NUNOBE, Naoki TOKUMARU and Akihito NOMOTO: Discovery of Assiminea (?) sp. (Gastropoda: Assimineidae) from Sukumo City, Kochi Prefecture, western Japan

..........................................45

亀井裕介・福田宏：真洞窟棲絶滅危惧貝類ホラアナゴマオカチグサ種群（新生腹足類：クビキレガイ上科：カワザンショウ科）の福岡県における60年ぶりの再発見
Yusuke KAMEI and Hiroshi FUKUDA: Rediscovery of the endangered cave-living gastropod Cavernacmella aff. kuzuuensis (K. Suzuki, 1937) (Caenogastropoda: Truncatelloidea: Assimineidae) in Fukuoka Prefecture, western Japan, after 60 years

..........................................53

中野智之：投げ釣りで釣れたマクラガイ（新腹足目：マクラガイ科）と貝類採集法としての釣りの可能性
Tomoyuki NAKANO: Oliva mustelina Lamarck, 1811 (Neogastropoda: Olividae) caught by casting, and the potential of fishing for collecting of molluscs

..........................................59

福田宏：佐多岬の浜辺に打ち上げられたマボロシリュウグウボタル（新腹足目：マクラガイ上科：リュウグウボタル科）
Hiroshi FUKUDA: Amalda (Baryspira) utopica Ninomiya, 1987 (Neogastropoda: Olivoidea: Ancillariidae) collected in beach drift at Cape Sata, Kagoshima, southern Ky?sh?, Japan

..........................................63

馬場雄司・上地健琉：大阪府におけるヒメヒラマキミズマイマイ（モノアラガイ目：ヒラマキガイ科）の記録および本種の標徴の再評価
Yuji BABA and Takeru UECHI: New records of Gyraulus sp. sensu Saito, Chiba & Fukuda, 2020 (Lymnaeida: Planorbidae) from Osaka, Japan, with assessment of diagnostic characters of the species

..........................................75

川村康平・早瀬善正：愛知県の石灰岩洞窟内に棲息するシタラ科（マイマイ目：カサマイマイ上科）の一種
Kohei Kawamura and Yoshimasa Hayase: A new occurrence record of an unidentified minute euconulid (Helicida: Trochomorphoidea) inhabiting the inside of a limestone cave in Aichi Prefecture, central Honshu, Japan

..........................................83

山崎大志・伊藤舜：宮城県加美郡加美町におけるムツヒダリマキマイマイおよびナメクジ属の一種（腹足綱：マイマイ目）の記録
Daishi YAMAZAKI and Shun ITO: Records of Euhadra decorata (Pilsbry & Y. Hirase, 1903) and Meghimatium sp. (Gastropoda: Helicida) from Kami-machi, Miyagi Prefecture, northern Honshu, Japan

.........................................89

岩崎敬二・石田惣・柏尾翔・亀田勇一・久保弘文・齊藤匠・澤田直人・芳賀拓真・早瀬善正・平野尚浩・福田宏：日本産軟体動物の稀少な未記載種の形態的標徴，分布ならびに棲息環境
Keiji IWASAKI, So ISHIDA, Sho KASHIO, Yuichi KAMEDA, Hirofumi KUBO, Takumi SAITO, Naoto SAWADA, Takuma HAGA, Yoshimasa HAYASE, Takahiro HIRANO and Hiroshi FUKUDA: Diagnosis, distribution and habitat of undescribed threatened molluscan species of Japan

........................................93

福田宏：追悼貝人2巨星ジョージ戴維斯 (George M. Davis) 博士・奥谷喬司博士
Hiroshi FUKUDA: Two giant stars in malacology have fallen: obituaries for Dr George M. Davis and Dr Takashi Okutani

........................................211

会記　Proceedings

総会議事録，会員異動，入会案内，Molluscan Diversity 投稿規定

........................................217

Volume 7, Numbers 1-2
目次　　CONTENTS
原著　　Original Articles
	柏雄介・阿部司・福田宏：岡山県におけるヒレイケチョウガイとイケチョウガイの交雑種とみられる個体（二枚貝綱：イシガイ目：イシガイ科）の確認 Yusuke KASHIWA, Tsukasa ABE and Hiroshi FUKUDA: Occurrences of the possible hybrids of Sinohyriopsis schlegelii (Martens, 1861) and Sinohyriopsis cumingii (Lea, 1852) (Bivalvia: Unionida: Unionidae) in Okayama Prefecture, western Japan
	...........................................1
	山田真悠子・小野廣記：島根県隠岐諸島におけるスリガハマ（二枚貝綱：マルスダレガイ科）の産出記録 Mayuko YAMADA and Hiroki ONO: *A new distribution record of Tapes platyptycha* Pilsbry, 1901 (Bivalvia: Veneridae) in the Oki Islands, Shimane, western Japan**
	..........................................5
	福田宏・池田等・石田惣・芳賀拓真：アコヤエビス（古腹足類：ニシキウズ目：エビスガイ科）の学名 Akoya akoya (Y. Hirase, 1922) の適格性と有効性，ならびに胎殻・頭部―腹足・歯舌・顎板の形態 Hiroshi FUKUDA, Hitoshi IKEDA, So ISHIDA and Takuma HAGA: The availability and validity of Akoya akoya (Y. Hirase, 1922) (Vetigastropoda: Trochida: Calliostomatidae), with notes on the morphology of the protoconch, head-foot, radula and jaw plate
	.........................................11
	福田宏：*山口県萩市で採集されたニシキサザエ（古腹足類：ニシキウズ目：リュウテン科），および Callopomella* Kira, 1959 の分類学的地位** Hiroshi FUKUDA: Turbo (Carswellena) excellens Sowerby III, 1914 (Vetigastropoda: Trochida: Turbinidae) collected from Hagi, Yamaguchi Prefecture, western Honshu, Japan, with notes on the taxonomic status of Callopomella Kira, 1959
	..........................................27
	澤田直人・齊藤匠・福田宏：山梨県河口湖におけるマメタニシ（新生腹足類：クビキレガイ上科：エゾマメタニシ科）の産出 Naoto SAWADA, Takumi SAITO and Hiroshi FUKUDA: Occurrence records of 'Parafossarulus' manchouricus japonicus (Pilsbry, 1901) (Caenogastropoda: Truncatelloidea: Bithyniidae) from Lake Kawaguchi, Yamanashi Prefecture, Japan
	..........................................41
	内野透・布部淳一・徳丸直輝・野元彰人：高知県宿毛市で発見されたオイランカワザンショウ（腹足綱：カワザンショウ科） Toru UCHINO, Jun-ichi NUNOBE, Naoki TOKUMARU and Akihito NOMOTO: *Discovery of Assiminea* (?) sp. (Gastropoda: Assimineidae) from Sukumo City, Kochi Prefecture, western Japan**
	..........................................45
	亀井裕介・福田宏：真洞窟棲絶滅危惧貝類ホラアナゴマオカチグサ種群（新生腹足類：クビキレガイ上科：カワザンショウ科）の福岡県における60年ぶりの再発見 Yusuke KAMEI and Hiroshi FUKUDA: Rediscovery of the endangered cave-living gastropod Cavernacmella aff. kuzuuensis (K. Suzuki, 1937) (Caenogastropoda: Truncatelloidea: Assimineidae) in Fukuoka Prefecture, western Japan, after 60 years
	..........................................53
	中野智之：投げ釣りで釣れたマクラガイ（新腹足目：マクラガイ科）と貝類採集法としての釣りの可能性 Tomoyuki NAKANO: Oliva mustelina Lamarck, 1811 (Neogastropoda: Olividae) caught by casting, and the potential of fishing for collecting of molluscs
	..........................................59
	福田宏：佐多岬の浜辺に打ち上げられたマボロシリュウグウボタル（新腹足目：マクラガイ上科：リュウグウボタル科） Hiroshi FUKUDA: Amalda (Baryspira) utopica Ninomiya, 1987 (Neogastropoda: Olivoidea: Ancillariidae) collected in beach drift at Cape Sata, Kagoshima, southern Ky?sh?, Japan
	..........................................63
	馬場雄司・上地健琉：大阪府におけるヒメヒラマキミズマイマイ（モノアラガイ目：ヒラマキガイ科）の記録および本種の標徴の再評価 Yuji BABA and Takeru UECHI: *New records of Gyraulus* sp. sensu Saito, Chiba & Fukuda, 2020 (Lymnaeida: Planorbidae) from Osaka, Japan, with assessment of diagnostic characters of the species**
	..........................................75
	川村康平・早瀬善正：愛知県の石灰岩洞窟内に棲息するシタラ科（マイマイ目：カサマイマイ上科）の一種 Kohei Kawamura and Yoshimasa Hayase: A new occurrence record of an unidentified minute euconulid (Helicida: Trochomorphoidea) inhabiting the inside of a limestone cave in Aichi Prefecture, central Honshu, Japan
	..........................................83
	山崎大志・伊藤舜：宮城県加美郡加美町におけるムツヒダリマキマイマイおよびナメクジ属の一種（腹足綱：マイマイ目）の記録 Daishi YAMAZAKI and Shun ITO: *Records of Euhadra decorata* (Pilsbry & Y. Hirase, 1903) and Meghimatium sp. (Gastropoda: Helicida) from Kami-machi, Miyagi Prefecture, northern Honshu, Japan**
	.........................................89
	岩崎敬二・石田惣・柏尾翔・亀田勇一・久保弘文・齊藤匠・澤田直人・芳賀拓真・早瀬善正・平野尚浩・福田宏：日本産軟体動物の稀少な未記載種の形態的標徴，分布ならびに棲息環境 Keiji IWASAKI, So ISHIDA, Sho KASHIO, Yuichi KAMEDA, Hirofumi KUBO, Takumi SAITO, Naoto SAWADA, Takuma HAGA, Yoshimasa HAYASE, Takahiro HIRANO and Hiroshi FUKUDA: Diagnosis, distribution and habitat of undescribed threatened molluscan species of Japan
	........................................93
	福田宏：追悼貝人2巨星ジョージ戴維斯 (George M. Davis) 博士・奥谷喬司博士 Hiroshi FUKUDA: Two giant stars in malacology have fallen: obituaries for Dr George M. Davis and Dr Takashi Okutani
	........................................211
会記　Proceedings
	総会議事録，会員異動，入会案内，Molluscan Diversity 投稿規定
	........................................217