Orientogalba ollula is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Lymnaeidae, the pond snails.
Description The length of the shell attains 8 mm.
(Original description in Latin) The shell is small, thin, and oval in shape, with a greenish horn-like color and a somewhat unpolished surface. It has about four and a half whorls, the last of which is swollen or rounded. The aperture is roundly oval, and the columella is simple, being covered posteriorly with a broad callus.
Distribution This species occurs in: China Hong Kong Taiwan Korea Japan Philippines
Parasites In Korea, Orientogalba ollula serves as a first and main intermediate host for the trematode species Echinostoma cinetorchis from the family Echinostomatidae.
Orientogalba ollula also serves as first intermediate host for the fluke Neodiplostomum seoulense in Korea.Chung P-R., Jung Y., Park Y-K.& Hwang M-K. (2002) "Host specificity of Austropeplea ollula (Gastropoda: Lymnaeidae) to miracidial infection with a human intestinal fluke Neodiplostomum seoulense (Trematoda: Diplostomatidae) in Korea". The Journal of Parasitology 88(3): 630-631. abstract
References
Yen, T.-C. (1937). The non-marine gastropods of North China. Part II. Publications du Musée Hoangho Paiho de Tien Tsin. 46: 1–32. Kruglov, N. D., Starobogatov Ya.I. (1993). Guide to recent molluscs in northern Eurasia. 3. Annotated and illustrated catalogue of species of the family Lymnaeidae (Gastropoda Pulmonata Lymnaeiformes) of Palaearctic and adjacent river drainage areas. Part I. Ruthenica. 3 (1): 65-92. Moskva
External links Photo of the shell of Austropeplea ollula https://web.archive.org/web/20091222132418/http://www.maff.go.jp/nouson/mizu_midori/frame/208f.html