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Scientific Name: Diodora lentiginosa (Reeve, 1850)
English Name: keyhole limpet, saucer limpet
Local/Bangla Name: Taj shamuk (তাজ শামুক)
Classification:
Kingdom: Animalia
Phylum: Mullusca
Class: Gastropoda
Order: Lepetellida
Family: Fissurellidae
Description:
The anterior dorsum is perforated. On the outer surface, you’ll find radial ribs, while the inner surface is smooth. In terms of color, there are uneven brown to reddish-brown patterns on a white or whitish-creamy background on the outer surface, whereas the inner surface is predominantly white. The shell is diminutive and has a rectangular-ovate shape, appearing concave and flattened. It’s decorated with clear radiating ridges, and in the anterior third, there is a small rectangular hole.
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