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- Title
Centrocestus formosanus (Digenea: Heterophyidae) Encysted in the Freshwater Fish, Puntius brevis, from Lao PDR.
- Authors
Eun-Taek Han; Eun-Hee Shin; Phommakorn, Souvanny; Sengvilaykham, Bounthong; Jae-Lip Kim; Han-Jong Rim; Jong-Yil Chai
- Abstract
The metacercariae of Centrocestus formosanus, a minute intestinal trematode of mammals and birds, were detected in the freshwater fish, Puntius brevis, from Vientiane Municipality, Lao PDR. The metacercariae were experimentally fed to mice, and adult flukes were recovered in their small intestines 7 days later. The adult flukes were morphologically characterized by having 32 (rarely 34) circumoral spines arranged in 2 alternative rows, a large bipartite seminal vesicle, an oval-shaped ovary, and an X-shaped excretory bladder. Based on these characters, the adults were identified as Centrocestus formosanus (Nishigori, 1924). The taxonomic significance of C. formosanus, in relation to a closely related species, C. caninus (Leiper, 1913), is briefly discussed. It has been first verified by adult worm recovery that C. formosanus is prevalent in Vientiane areas of Lao PDR, taking the freshwater fish, P. brevis, as a second intermediate host.
- Subjects
VIANGCHAN (Laos); LAOS; TREMATODA; FRESHWATER fishes; PUNTIUS; METACERCARIA
- Publication
Korean Journal of Parasitology, 2008, Vol 46, Issue 1, p49
- ISSN
0023-4001
- Publication type
Article
- DOI
10.3347/kjp.2008.46.1.49