高知県浦ノ内湾におけるヘナタリの生息状況と須崎湾で得られた貝殻（腹足綱：フトヘナタリ科）

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タイトル別名
  • Record of Cerithidea cingulata on the intertidal sandy-mud flats in Uranouchi Inlet, and note on a dead-shell from Susaki Bay, both in Kochi Prefecture (Gastropoda: Potamididae)
  • コウチケン ウラノウチワン ニ オケル ヘナタリ ノ セイソク ジョウキョウ ト スサキワン デ エラレタ カイガラ フクソクコウ フトヘナタリカ

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抄録

A brackish water potamidid snail Cerithidea cingulata was studied in Uranouchi Inlet and Susaki Bay. In 2000, this species was designated as one of the critically endangered species of Kochi Prefecture. Prior to this study, living individuals of C, cingulata were observed in 1981 on the intertidal sandy-mud flats in Uranouchi Inlet, known to be the only locality for living snails in Kochi Prefecture, according to a report in 2002. However, the species seemed to be extinct, because the living snails have not been seen after 1981. This study confirmed the occurrence of C. cingulata at two localities, Shimo-nakayama and Kongauchi, both in Uranouchi Inlet in 2005. In addition, a dead-shell of C. cingulata was obtained from Susaki Bay in 2005, where no living or fossil records of this species have been reported.

収録刊行物

  • 四国自然史科学研究

    四国自然史科学研究 3 (0), 57-61, 2006

    特定非営利活動法人 四国自然史科学研究センター

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