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Scientific Name: Lambis truncata ([Lightfoot], 1786)
English Name: Giant spider conch
Local/Bangla Name: Bischu kata (বিচ্ছু শামুক)
Giant spider conch - Bischu kata (বিচ্ছু শামুক) - Lambis truncata - Type: Sea_snails

Photo: GBIF

Classification:
Kingdom: Animalia
Phylum: Mullusca
Class: Gastropoda
Order: Littorinimorpha
Family: Strombidae
Description:
Shell very large, hard, heavy, solid, from massive, with strong knobs on the spire. Spiral the whorl convex, with fine spiral threads and a row of large, conspicuous knobs on the shoulder. Dorsal side of the body whorl with low spiral ribs and 2 or 3 spiral rows of blunt, rather weak knobs that are stronger on the shoulder. Mid-dorsal tubercle of the shoulder not much developed in female specimens. I Ventral side of the shell extensively glazed. Columella and outer lip of the aperture nearly smooth. Outer lip with a well marked stromboid notch and 6 short laterally expanded spines, hollow digitations.
Habitat & Distribution in Bangladesh:
St. Martin’s Island, in Teknaf and off the Sundarbans
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.

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