Peripatus dominicae
| Peripatus dominicae | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Onychophora |
| Family: | Peripatidae |
| Genus: | Peripatus |
| Species: | P. dominicae
|
| Binomial name | |
| Peripatus dominicae Pollard, 1894
| |
| Synonyms | |
| |
Peripatus dominicae is a species of velvet worm in the Peripatidae family.[1] The type locality for this species is on the Caribbean island of Dominica.[2] Although Stewart Peck introduced the name Peripatus dominicae dominicae in 1975 to distinguish the original species from other subspecies then assigned to P. dominicae,[3] authorities now deem these subspecies to be separate species in light of the significant distances between their type localities (ranging from 115 km to 1,380 km).[2][4]
Description[edit]
The original description of this species is based on a large sample of 86 specimens collected in Dominica and then preserved before the British zoologist Ray Lankester passed them on to E.C. Pollard for description.[5] Females are apparently more common than males: Pollard determined the sex of 39 of her specimens, of which 31 were female and only eight were male.[5] After Pollard's original description, E.L. Bouvier examined and described another 15 females and two males of this species.[6] More recently, V.M.S.J. Read examined and described seven specimens deposited in the Natural History Museum of London, including two with specific locality records (Prince Rupert and Laudat), using electron scanning microscopy.[7]
This species exhibits a notable degree of sexual dimorphism in the size of fully grown adults:[5] 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.[6][8] This species also exhibits sexual dimorphism in the number of legs: All specimens identified as males of this species have 25 pairs of legs, whereas females can have 28 to 31 pairs of legs,[6][8] but usually have 29.[5][7]
Pollard describes her preserved specimens as usually reddish brown with a diffuse darker streak down the middle of the back and a much paler "light grey or greyish yellow" ventral surface. The dorsal and ventral sides of the legs match the colors of the dorsal and ventral surfaces of the body. The antennae are a dark red-brown, but with the distal end much more pale.[5]
References[edit]
- ^ Oliveira, I.; Hering, L. & Mayer, G. "Updated Onychophora checklist". Onychophora Website. Retrieved 24 November 2016.
- ^ a b Oliveira, Ivo de Sena (2023-11-16). "An updated world checklist of velvet worms (Onychophora) with notes on nomenclature and status of names". ZooKeys (1184): 133–260. Bibcode:2023ZooK.1184..133O. doi:10.3897/zookeys.1184.107286. ISSN 1313-2970. PMC 10680090. PMID 38023768.
- ^ Peck, Stewart B. (1975). "A Review of the New World Onychophora, with the Description of a New Cavernicolous Genus and Species From Jamaica". Psyche: A Journal of Entomology. 82 (3–4): 341–358. doi:10.1155/1975/98614. ISSN 0033-2615.
- ^ Oliveira, I. S.; Read, V. M. S. J.; Mayer, G. (2012). "A world checklist of Onychophora (velvet worms), with notes on nomenclature and status of names". ZooKeys (211): 1–70. Bibcode:2012ZooK..211....1O. doi:10.3897/zookeys.211.3463. PMC 3426840. PMID 22930648.
- ^ a b c d e Pollard, E.C. (1893). "Notes on the Peripatus of Dominica". Quarterly Journal of Microscopical Science. 35: 285–293 – via Biodiversity Heritage Library.
- ^ a b c Bouvier, E.-L. (1905). "Monographie des Onychophores". Annales des Sciences Naturelles, Zoologie (in French). 9 (2): 1–383 – via Biodiversity Heritage Library.
- ^ a b Read, V. M. St. J. (July 1988). "The Onychophora of Trinidad, Tobago, and the Lesser Antilles". Zoological Journal of the Linnean Society. 93 (3): 225–57. doi:10.1111/j.1096-3642.1988.tb01362.x.
- ^ a b Monge-Nájera, Julián (1994). "Reproductive trends, habitat type and body characteristcs in velvet worms (Onychophora)". Revista de Biología Tropical. 42 (3): 611–622. ISSN 2215-2075.
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