Objective of this research was to record the morphometric and meristic characters and to estimate the length-weight relationship of the Parapocryptes rictuosus collected from mudflats of Diamond harbor, West Bengal, India. Samples of the P. rictuosus were collected by dip net, scoop net, cast net and hand picking. A total of 280 specimens (157 males and 123 females) ranging from 8 cm to 20.0 cm in size were collected. The morphometric and meristic characters of the fishes were examined (cm). The ‘b’ values traced for males (2.827) and females (2.728) were found to vary significantly. In this study, the slope length (b) was below the expected ‘3’ that indicates that this fish becomes more slender as it increases.
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