Peripatidae is a family of velvet worms. The oldest putative representatives of the family herald from Burmese amber dated to the mid-Cretaceous, around 100 Ma, with representatives from Dominican and Baltic amber attesting to a broader distribution in the Palaeogene / Neogene; molecular variability suggests that the family's crown group may have arisen in the early Mesozoic.
Paropisthopatus is a monospecific genus of velvet worm containing the single species Paropisthopatus umbrinus. Females of this species range from 20 mm to 70 mm in length. The type locality is in central Chile. Velvet worms in this genus have 16 pairs of legs.
Epiperipatus biolleyi is a species of velvet worm in the Peripatidae family. Females of this species have 28 to 32 pairs of legs; males have 25 to 30. Females range from 18 mm to 75 mm in length, with a mean length of 52 mm, whereas males range from 18 mm to 55 mm, with a mean length of 38 mm. The type locality is in Costa Rica.
Epiperipatus simoni is a species of velvet worm in the Peripatidae family. Females of this species range from 40 mm to 68 mm in length and have 28 to 32 pairs of legs. The type locality is in Venezuela.
Euperipatoides leuckartii is a species of velvet worm in the family Peripatopsidae. This species is ovoviviparous and has 15 pairs of oncopods (legs). Females of this species range from 5 mm to 40 mm in length, whereas males range from 4 mm to 29 mm. The type locality of this species is Mount Tomah, New South Wales, Australia.
Opisthopatus cinctipes is a species of velvet worm in the Peripatopsidae family. This species has 16 pairs of legs, all with claws and all used for walking. Females range from 7 mm to 50 mm in length, whereas males range from 6 mm to 36 mm. The type locality is in South Africa.
Oroperipatus eisenii is a species of velvet worm in the family Peripatidae. Females of this species have 27 to 29 pairs of legs, usually 28; males have 23 to 26. Females range from 30 mm to 57 mm in length, while males range from 20 mm to 23 mm. The type locality is found in central Mexico.
Oroperipatus lankesteri is a species of velvet worm in the Peripatidae family. Females of this species have 37 or 38 pairs of legs; males have 33 to 35 pairs. This species is notable for its large size, which ranges from 32 mm up to 82 mm in length. The type locality is in Ecuador.
Peripatus brolemanni is a species of velvet worm in the Peripatidae family. Females of this species have 30 to 33 pairs of legs; males have 29. Females range from 39 mm to 65 mm in length, whereas males range from 27 mm to 28 mm. The type locality is in Venezuela.
Peripatus danicus is a species of velvet worm in the Peripatidae family. Females of this species have 31 to 33 pairs of legs; males have 26 to 28. Females range from 26 mm to 45 mm in length, whereas males range from 9 mm to 21 mm. The type locality is in Saint Thomas Island.
Peripatus dominicae is a species of velvet worm in the Peripatidae family. Males of this species have 25 pairs of legs; females can have 28 to 31 pairs of legs, but usually have 29. Females in this species range in size from 29 mm to 56 mm in length, while males range from 17 mm to 25 mm in length. The type locality is in Dominica.
Peripatus sedgwicki is a species of velvet worm in the Peripatidae family. Females of this species have 29 to 32 pairs of legs; males have 28 to 30. Females range from 25 mm to 60 mm in length, while males range from 23 mm to 30 mm. The type locality is in Venezuela.
Paraperipatus novaebritanniae is a species of velvet worm in the Peripatopsidae family. Females of this species have 24 pairs of legs; males have 22 or 23. Females range from 14 mm to 55 mm in length, whereas males range from 14 mm to 26 mm. The type locality is in New Britain, Papua New Guinea.
Paraperipatus papuensis is a species of velvet worm in the Peripatopsidae family. Males in this species have 21 to 27 pairs of legs; females have 21 to 29 leg pairs. The maximum number of leg pairs recorded in this species (29) is also the maximum number of leg pairs found in the family Peripatopsidae. Females range from 22 mm to 83 mm in length, whereas males range from 19 mm to 45 mm. The type locality is in Western New Guinea, Indonesia.
Paraperipatus vanheurni is a species of velvet worm in the Peripatopsidae family. Females of this species have 25 to 27 pairs of legs; males have 21. This species ranges from 15 mm to 60 mm in length. The type locality is in Western New Guinea, Indonesia.
Peripatopsis balfouri is a species of velvet worm in the Peripatopsidae family. This species has 18 pairs of clawed legs. Females of this species range from 8 mm to 43 mm in length, whereas males range from 8 mm to 32 mm. The type locality is in South Africa.
Peripatopsis moseleyi is a species of velvet worm in the Peripatopsidae family. Females of this species have 19 to 23 pairs of legs with claws ; males have 20 to 24 pairs of legs with claws. Females range from 11 mm to 75 mm in length, whereas males range from 9 mm to 50 mm. The type locality is in South Africa.
Peripatopsis sedgwicki is a species of velvet worm in the Peripatopsidae family. This species can have either 20 or 21 pairs of legs, but descriptions have usually reported 20 pairs of clawed legs. Females of this species range in size from 12 mm to 68 mm in length, whereas males range from 10 mm to 46 mm in length. The type locality is in South Africa.
Peripatopsis clavigera, the Knysna velvet worm, is a species of velvet worm in the Peripatopsidae family. This species has 16 pairs of legs. Females of this species range from 7 mm to 52 mm in length, whereas males range from 7 mm to 36 mm. Peripatopsis clavigera is found in subtropical or tropical moist montane forests of South Africa.
Peripatopsis leonina, the Lion's Hill velvet worm, is a species of velvet worm in the Peripatopsidae family. This species has 20 to 24 pairs of legs, usually 21 or 22 leg pairs, with the last pair of legs reduced. Females of this species range from 7 mm to 41 mm in length, whereas males range from 7 mm to 34 mm.
