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Polybius is found in the north-east Atlantic Ocean from the British Isles to Morocco, and in the western Mediterranean Sea. Very abundant swarms have been found along the coasts off Galicia (Spain) and off Portugal. Rare spec… See more

Polybius henslowii is a capable swimmer, and can be found swimming near the ocean surface, where it feeds on a mixture of squid, fish, and other crustaceans, including specimens of the same species. Indeed, P. henslowii h… See more

Polybius henslowii was first described by William Elford Leach in 1820, as the only species in his new genus Polybius. Although a number of other species were added to the genus over time, they have all since been … See more