One of the mysteries of the English language finally explained.
Each of the eight walking limbs of a crustacean such as a crab or lobster, growing from the thorax.
- ‘Members of the Hexapodidae are easily identified if sterna and pereiopods are present, because possession of four pairs of pereiopods and seven exposed sternites is diagnostic for the family.’
- ‘It possesses several features that place it in the Lophogastrida, such as the presence of well-developed abdominal pleurae, pleopods and pereiopods, a broadly structured telson and a lack of uropodal statocysts.’
- ‘As with many of the modem Eucopia species, this fossil taxon is characterized by the possession of highly elongate posterior pereiopods.’
- ‘At least one family within the Dorippoidea, the Dorippidae, has very long second and third pereiopods and short first pereiopods, as do necrocarcinids with preserved appendages.’
- ‘The specimen bears three chelate pereiopods, with the first much larger than the others.’
Late 19th century: from Greek peraioōn ‘transporting’ (present participle of peraioun) + pous, pod- ‘foot’.
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