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Scientific Name: Lymanea stagnalis (Linnaeus, 1758)
English Name: Lymneid snail, stagnant Pond snail
Local/Bangla Name: লম্বা শামুক(lomba shamuk)
Photo: GBIF
Classification:
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Basommatophora
Family: Lymnaeidae
Description:
The shell is thin and horny, taking on an ovate and tall shape. The body whorl is large, expanding outward, and features a sizable ovate aperture. The spire is distinct, pointed, and conical, with an exceptional elongation and acumination. The columellar callus is well-expanded, and the umbilicus is closed. The head has a pair of flattened, non-invaginable, triangular tentacles with eyes situated at the base. There are 4-6 whorls in the shell. The exterior color ranges from golden-greenish to creamy, and sometimes it may appear reddish-white. On average, the shell measures 30 mm in length, 15 mm in width, with an aperture length of 22 mm and an aperture width of 12 mm.
Habitat & Distribution in Bangladesh:
Aquatic snail, found in ponds, ditches, tanks and paddy fields with dense vegetation; abundant in water bodies where other Lymnaea spp. are not usually present. Common all over Bangladesh; widely distributed in all low lands.
Environment:
brakish, freshwater