2023 Volume 59 Issue 1 Pages 9-16
Eighteen samples were collected from the south basin of Lake Biwa and Seta River between July 2019 and July 2022. Total 29 species of scale-bearing chrysophytes; 17 species of Mallomonas, 5 of Synura, 5 of Spiniferomonas and 2 of Paraphysomonas were found. Among them, Mallomonas corymbosa was new to Japan, and four species; M. flora, M. paxillata, M. pumilio and Spiniferomonas bilacunosa were first reported from Lake Biwa and Seta River.