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Not AvailableThe length-weight relationship and condition factor of Sartoriana spinigera (Wood-Mason, 1871) was studied from East Kolkata Wetland of West Bengal, India. The study assesses the relationship of some body dimensions and weight and size frequency of Wood Mason crab S. spinigera. The variations in the condition factor (carapace length/weight) was analysed for sex wise as well as for combined sexes. Length-weight relationship of the crabs indicates a negative allometric growth. The study shows that the condition factor of the studied male crab was 2.26, female 2.16 and for combined sexes 2.16. The sex ratio is 1 male: 1.51 female. The study reveals that there is a strong co-relation between various morphometric characters. The highest number of crabs (203) found between the size group of 32 to 37 mm carapace length and the lowest number of crabs (8) found between the size group of 44 to 49 mm carapace length.Not Availabl