Peripatopsis | |
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Illustration of the oncopods (legs) of Peripatopsis capensis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Onychophora |
Family: | Peripatopsidae |
Genus: |
Peripatopsis Pocock, 1894 |
Species | |
See text |
Peripatopsis is a genus of South African velvet worms in the Peripatopsidae family. [1] [2] The number of legs in this genus ranges from as few as 16 pairs (e.g., in P. clavigera) [3] to as many as 25 pairs (in P. moseleyi) and varies within species when the number is greater than 18 pairs. [4] Velvet worms in this genus feature a last pair of legs (the genital pair) that is rudimentary or reduced in size, mainly in males. [4] The feet in this genus feature three distal leg papillae: two anterior and one posterior. [5]
This genus exhibits matrotrophic viviparity, that is, mothers in this genus retain eggs in their uteri and supply nourishment to their embryos, but without any placenta. [6] Embryonic development in this genus takes 12 to 13 months, during which the mother contains up to 20 embryos, all at about the same stage of development. The young are born alive tail first, one or two at a time, all within a short period of time. The young resemble adults in form but are smaller. [5]
The genus Peripatopsis consists of the following species:
Peripatopsis | |
---|---|
Illustration of the oncopods (legs) of Peripatopsis capensis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Onychophora |
Family: | Peripatopsidae |
Genus: |
Peripatopsis Pocock, 1894 |
Species | |
See text |
Peripatopsis is a genus of South African velvet worms in the Peripatopsidae family. [1] [2] The number of legs in this genus ranges from as few as 16 pairs (e.g., in P. clavigera) [3] to as many as 25 pairs (in P. moseleyi) and varies within species when the number is greater than 18 pairs. [4] Velvet worms in this genus feature a last pair of legs (the genital pair) that is rudimentary or reduced in size, mainly in males. [4] The feet in this genus feature three distal leg papillae: two anterior and one posterior. [5]
This genus exhibits matrotrophic viviparity, that is, mothers in this genus retain eggs in their uteri and supply nourishment to their embryos, but without any placenta. [6] Embryonic development in this genus takes 12 to 13 months, during which the mother contains up to 20 embryos, all at about the same stage of development. The young are born alive tail first, one or two at a time, all within a short period of time. The young resemble adults in form but are smaller. [5]
The genus Peripatopsis consists of the following species: