Some rare larval trematodes of prosobranch snails, Semisulcospira spp., in the Lake Biwa drainage system, central Japan.
A total of 17737 individuals of prosobranch snails, Semisulcospira spp., were collected from Lake Biwa and its tributaries, central Japan, from 1995 to 1999. They were examined for trematode larvae. One species of Aspidogastrea and 28 species of Digenea were detected. This paper briefly describes five of the 28 digeneans: a tetracotyle metacercaria from S. niponica, Cercaria A (cystophorous cercaria) from S. reticulata, Cercaria B (echinostomatid cercaria) from S. libertina, Cercaria C (magnacauda cercaria) from S. niponica and Cercaria D (mutabile cercarium) from S. nakasekoae. They were rare and every one of them was obtained from one snail only once.
Urabe
M
M
Department of Zoology, Faculty of Science, Kyoto University, Kyoto 606-8502, Japan. urabe55@pwri.go.jp
D000818:Animals; D005618:Fresh Water; D007564:Japan; D007814:Larva / Q000145:classification / Q000648:ultrastructure; D012908:Snails / Q000254:growth & development / Q000469:parasitology*; D014200:Trematoda / Q000145:classification* / Q000254:growth & development / Q000302:isolation & purification* / Q000648:ultrastructure