Scientific Name: Parreysia corrugata (Müller, 1774)
Synonym: Parreysia (Parreysia) favidens var. assamensis, Parreysia (Parreysia) favidens var. marcens, Parreysia (Perreysia) favidens var. viridula Parreysia gowhattensis (Theobald, 1873) (Currently unaccepted)
English Name: Freshwater mussel
Local/Bangla Name: পাতলা ঝিনুক (Patla jhinuk)
Photo: Ivan N. Bolotov et al, 2022
Classification:
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Description:
The shell is thick and exhibits an elliptical to oval shape with equilateral symmetry. It is distinctly sculptured with oblique radiating ridges, and the posterior ridge is more prominent. The periostracum is smooth, and the umbones are more inflated. The ventral margin is convex, and a well-marked lunule is present. The cardinal teeth are strong, ventrally striated, and not lamellar. The periostracum has a yellowish-black, shiny appearance. The interior is pinkish-white and highly shiny. On average, the shell measures about 46 mm in length, 30 mm in height, and 22 mm in thickness.
Habitat & Distribution in Bangladesh:
The specimens found in aquatic habitat viz. Lakes, Rivers and streams. Abundant in Sylhet district.
Environment:
freshwater
References:
Siddiqui KU, Islam MA, Kabir SMH, Ahmad M, Ahmed ATA, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M, Rahman MM (2007) Encyclopedia of Flora and Fauna of Bangladesh, Vol. 17. Molluscs. Asiatic Society of Bangladesh, Dhaka 415 pp
