Scientific Name: Charybdis (Charybdis) lucifer (Fabricius, 1798)
English Name: Four Spotted Swimming Crab, Yellowish Brown Crab
Local/Bangla Name: Kakra (কাঁকড়া)
Labcode: C1803SM-10
Photo: ABR Lab
Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Family: Portunidae
Description:
The crab’s carapace is transversely ovate or hexagonal and sometimes circular. The legs are laterally flattened to varying degrees and the last 2 segments of the last pair of legs are paddle-like. The male’s abdominal segments 3 to 5 are completely fused and immovable.
Habitat & Distribution in Bangladesh:
St. Martin’s Island, Bay of Bengal of Bangladesh
Environment:
Marine
References:
Ahmed ATA, Kabir SMH, Ahmad M, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M (Eds.) (2008) Encyclopedia of Flora and Fauna of Bangladesh, Vol. 18. Part II. Arthropoda: Crustacea. Asiatic Society of Bangladesh, Dhaka, 226 pp
Islam, M.T., & Bhuyan, M.S. (2025). Marine crabs of Bangladesh: An Illustrative Guide (1st ed.). Bangladesh Oceanographic Research Institute (BORI) ISBN : 978-984-35-8048-1
