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Scientific Name: Nerita polita Linnaeus, 1758
English Name: Polished nerite, Bleeding tooth, Ancient nerite, Rugate nerite
Local/Bangla Name: Kalapat shamuk (কালাপ্যাট শামুক)
Classification:
Kingdom: Animalia
Phylum: Mullusca
Class: Gastropoda
Order: Cycloneritida
Family: Neritidae
Description:
The last whorl of the body is sizable and spreads out. The outer surface is sleek and unblemished, showing longitudinal growth lines and indentations. The aperture is crescent-shaped, having a smooth and shiny texture, while the outer lip is thick and serrated due to the external ribbing, featuring 5-8 sturdy and prominent teeth along its inner margin. The columellar region is robust, exhibiting a convex shape or grooves. The operculum is glossy and features a narrow, somewhat dull thickening at the front end. The exterior surface is either white or creamy-yellow, occasionally marked with grey or purplish-brown bands, while the inner surface is whitish.
Habitat & Distribution in Bangladesh:
St. Martin’s island and Sonadia island
Environment:
Marine
Main 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.

Other References:
DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Other Information