3 0 0 0 OA 利尻島に産する淡水生貝形虫
We report six freshwater ostracods from Rishiri Island, Hokkaido, Japan: Cypricercinae sp., Cavernocypris sp.1, Ca. sp.2, Cypridopsis vidua, Candonini sp., and Metacypris cf. digitiformis. This is the first report of freshwater ostracods from this island. We provided brief descriptions of their morphology, presented partial nucleotide sequences for their mitochondrial cytochrome c oxidase subunit I(COI) and/or nuclear 18S rRNA genes, and determined a partial 16S rRNA sequence for the endosymbiotic bacterium Cardinium in some species. A key to six species collected from this island was presented.
- 著者
- 角井 敬知 宗像 みずほ
- 出版者
- 小樽市総合博物館
- 雑誌
- 小樽市総合博物館紀要
- 巻号頁・発行日
- vol.35, pp.13-16, 2022-03-20
We found the ciliophoran protozoan Lagenophrys sp. to be symbiotic on the freshwater ostracod Cryptocandona sp., collected from Makkari, Hokkaido, Japan. In Japan, this is the third record of Lagenophrys and the first case from ostracods. We present a nucleotide sequence for the 18S rRNA gene (1,683 bp) from Lagenophrys sp. In an 18S maximum-likelihood tree that included 57 peritrichid sequences, Lagenophrys sp. grouped with the usconophryid Usconophrys sp.