Amynthas gracilis
Creators
Description
Amynthas gracilis (Kinberg, 1867)
Nitocris gracilis: Kinberg 1867: 102.
Perichaeta hawayana Rosa, 1891: 396.
Pheretima hawayana: Gates 1972: 189; Ljungström 1972 a: 51.
Amynthas gracilis: Sims & Easton 1972: 235.
Amynthas hawayanus: Dlamini 2002: 62; Plisko 2010: 303.
Type locality: Brazil, Rio de Janeiro.
Description:
External: Body length 100–130 mm, width 3–5 mm, number of segments 85–95. Prostomium epilobous. First dorsal pore in 10/11. Clitellum circular on 14–16. Spermathecal pores paired in intersegmental furrows 5/6–7/8, ca 0.25–0.30 of body circumference apart. Female pore single on 14, minute. Male pores paired on 18. Genital markings: three pairs near the male pores on 18, forming the shape of a semicircle.
Internal: Septa 6/7 and 7/8 slightly thickened, 8/9 and 9/10 missing. Gizzard in 8–10. Intestinal origin in 15. Caeca simple originating in 27 extending forward. Holandric. Spermathecae large and roundish with elongate diverticulum, in 6–8. Seminal vesicles in 11–12. Prostates racemose, large, in 17–21 and 22.
Material examined:43 cl.: Woodland, on the side of the road near fence (29°34.810'S 30°19.271'E), 23.ii.2012, 8 cl., NMSA /Olig.06102; Woodland, near Nursery (29°33.867'S 30°19.106'E), 3087 ft, 23.ii.2012, 1 cl., NMSA /Olig.06168; 7 cl., NMSA /Olig.06098; Woodland, small grass with bush near road (29°34.345'S 30°19.377'E), 7.i.2012, 2 cl., NMSA /Olig.06096; Indigenous Bush (29°34.357'S 30°19.399'E), 22.ii.2012, 3 cl., NMSA /Olig.06169; Indigenous Bush, big trees, soft moist soil (29°34.219'S 30°19.177'E), 3105 ft, 22.ii.2012, 3 cl., NMSA /Olig.06170; 15 cl., NMSA /Olig.06113; Indigenous bush, big trees wet soil, dense cover (29°34.151'S 30°19.263'E), 2996 ft, 22.ii.2012, 1 cl., NMSA /Olig.06171; Plantation, wattle & pine (29°33.655'S 30°18.919'E), 3106 ft, 23.ii.2012, 2 cl., NMSA /Olig.06120; Grassland, open patch of grass (29°34.123'S 30°19.153'E), 7.i.2012, 1 cl., NMSA /Olig.06137.
Remarks: The species occurs in six South African provinces (Plisko 2010), namely LP, MP, GP, NW, KZN and EC. It is common in natural as well as agricultural habitats (Ljungström 1972 a; Reynolds & Reinecke 1976).
Notes
Files
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.5733/afin.053.0207 (DOI)
- Journal article: http://zenodo.org/record/7918468 (URL)
- Journal article: http://publication.plazi.org/id/FFDB76449868FFAAFF9DFFC62239FFD9 (URL)
- Journal article: http://zoobank.org/93922FBA-820B-4130-B5B9-B40857C1576F (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/03E20E3C9861FFA3FE4EFE7A20DAFACB (URL)
Biodiversity
- Collection code
- NMSA
- Event date
- 2012-01-07
- Family
- Megascolecidae
- Genus
- Amynthas
- Kingdom
- Animalia
- Order
- Opisthopora
- Phylum
- Annelida
- Scientific name authorship
- Kinberg
- Species
- gracilis
- Taxon rank
- species
- Type status
- holotype
- Verbatim event date
- 2012-01-07/02-23
- Taxonomic concept label
- Amynthas gracilis (Kinberg, 1867) sec. Nxele, 2012
References
- KINBERG, J. G. H. 1867. Annulata nova. Ofversigt af Kongliga Vetenskaps-Akademiens Forhandlingar 23: 97 - 103.
- ROSA, D. 1891. Die exotischen Terricolen des k. k. Naturhistorischen Hofmuseums. Annalen des K. K. Naturhistorischen Hofmuseums Wien 6: 379 - 406.
- LJUNGSTROM, P. O. 1972 a. Introduced earthworms of South Africa. On their taxonomy, distribution, history of introduction and on the extermination of endemic earthworms. Zoologische Jahrbucher, Abteilung fur Systematik 99: 1 - 81.
- SIMS, R. W. & EASTON, E. G. 1972. A numerical revision of the earthworm genus Pheretima auct. (Megascolecidae: Oligochaeta) with the recognition of new genera and an appendix on the earthworms collected by the Royal Society North Borneo Expedition. Biological Journal of the Linnean Society 4 (3): 169 - 268.
- DLAMINI, T. C. 2002. Influence of land use on soil organic matter status, microbial biomass C and size and composition of earthworm communities in northern KwaZulu-Natal. Unpublished MSc dissertation. Pietermaritzburg: University of KwaZulu-Natal.
- REYNOLDS, J. W. & REINECKE, A. J. 1976. A preliminary survey of the earthworms of the Kruger National Park, South Africa (Oligochaeta: Glossoscolecidae, Megascolecidae and Octochaetidae). Wetenskaplike Bydraes van die Potchefstroomse Universiteit vir Christelike Hoer Onderwys, Reeks B: Natuurwetenskappe 89: 1 - 19.