Peripatopsis purpureus is a species of velvet worm in the family Peripatopsidae. This species is a clade in the P. balfouri species complex. Males of this species have 17 clawed legs with the last pair highly reduced, whereas females have a complete foot with claws on the reduced leg. Named for its purple-blue color, this species is found in the Western Cape Province of South Africa. This species ranges between 13 mm to 26 mm in length.

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