Published December 31, 2016 | Version v1
Taxonomic treatment Open

Africorchestia quadrispinosa K.H. Barnard 1916

Description

Africorchestia quadrispinosa (K.H. Barnard, 1916)

(Figs 5–8)

Orchestia Fischerii. ― Guérin, 1832: pl. 26, fig. 3, and 1843. Explication des Planches, p. 22. (non H. Edwards, 1830 and 1840.)

Orchestoidea Fischerii. ― Stebbing, 1910: 459 (in part).

Talorchestia quadrispinosa K.H. Barnard, 1916: 217, pl. 27, figs 29–32. ― K.H. Barnard, 1940: 470, fig. 29. ― Schellenberg, 1925: 159. ― Penrith & Kensley, 1970: 205, 231, table 1 (ecology). ― Griffiths, 1974a: 204. ― Griffiths, 1975: 171. ― Coleman & Leistikow, 2001: 4, figs 7–11.

Africorchestia quadrispinosa. ― Lowry & Coleman, 2011: 58, fig. 2. ― Milne & Griffiths, 2013: 77, 87 (Appendix). ― Cramb, 2015: 62, Table 3.2, 68, 150, 151, 174, 175, 178–184, 186 192, 193.

Types. Syntypes, males and females, SAM 1256, SAM 1283, SAM A2514, SAM A2875.

Type locality. Dassen Island (~ 33°25’S 18°05’E) and east and west coast of Cape Peninsula (~ 34°10’S 18°20’E), South Africa.

Material examined. 2 males, AM P.98279, Lüderitz, Namibia (~ 26°38’45”S 15°9’14”E), S. Baldanzi, 2010– 2011. 7 males, 8 females, AM P.98280, Pringle Bay, South Africa (~ 34°21’S 18°49’E), S. Baldanzi, 2010–2011. 1 male, 12.1 MM, AM P.99074, 3 males, 4 females, AM P.98281, Struisbaai Bay, South Africa (~ 34°48’16”S 20°03’27”E), S. Baldanzi, 2010–2011.

Diagnosis. Based on male. Gnathopod 2 propodus ovate, palm extremely acute, convex, extending about 75% of posterior margin, with rounded protuberance near dactylar hinge, with large distal sinus, with two rows of robust setae along entire margin, posteroproximal corner without spine; dactylus slightly longer than palm. Pereopods 6– 7 much longer than pereopods 3–5. Pereopod 6 much longer than pereopod 7; basis expanded posteriorly. Pleonites 1–2 each with pair of posterodistal spines. Pleonite 3 with paired vestigial posterodistal spines. Uropod 3 ramus longer than peduncle, 3.8 x as long as broad. Telson entire apically truncated with about 10 apical robust setae on each side.

Distribution. Namibia. Walvis Bay, ~ 25°55’S 14°32’E (Schellenberg 1925); Lüderitz Bay, ~ 26°39’S 15°09’E (Schellenberg 1925; Penrith & Kensley 1970); Shearwater Bay (Griffiths 1974a); Skeleton Coast, 21°38’38”S 13°55’17”E and 26°44’09”S 15°05’40”E (Coleman & Leistikow 2001); Orange River mouth, ~ 28°37’56.23”S 16°27’16.88”E (Griffiths 1974a). South Africa. Cape Peninsula, (K.H. Barnard 1916); Dassen Island; Pringle Bay, Struisbaai Bay (this study).

Notes

Published as part of Lowry, J. K. & Baldanzi, S., 2016, New talitrids from South Africa (Amphipoda, Senticaudata, Talitroidea, Talitridae) with notes on their ecology, pp. 151-174 in Zootaxa 4144 (2) on page 158, DOI: 10.11646/zootaxa.4144.2.1, http://zenodo.org/record/272039

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Linked records

Additional details

Biodiversity

Family
Talitridae
Genus
Africorchestia
Kingdom
Animalia
Order
Amphipoda
Phylum
Arthropoda
Scientific name authorship
K.H. Barnard
Species
quadrispinosa
Taxon rank
species
Type status
holotype
Taxonomic concept label
Africorchestia quadrispinosa Barnard, 1916 sec. Lowry & Baldanzi, 2016

References

  • Barnard, K. H. (1916) Contributions to the crustacean fauna of South Africa. 5. The Amphipoda. Annals of the South African Museum, 15, 105 - 302. http: // dx. doi. org / 10.5962 / bhl. part. 22196
  • Guerin, M. (1832) Expedition Scientifique de Moree. Section des Sciences Physiques. Zoologie. Deuxieme Section. Des Animaux Articules. Vol. 3. Part 1. F. G. Levrault, Paris, 400 pp. [pl. 26 of Atlas. 1832 - 1835.]
  • Stebbing, T. R. R. (1910) General catalogue of South African Crustacea (Part V. of S. A. Crustacea, for the Marine Investigations in South Africa). Annals of the South African Museum, 6, 281 - 593, pls. 215 - 222.
  • Barnard, K. H. (1940) Contributions to the crustacean fauna of South Africa. 12. Further additions to the Tanaidacea, Isopoda, and Amphipoda, together with keys for the identification of the hitherto recorded marine and fresh-water species. Annals of the South African Museum, 32, 381 - 543.
  • Schellenberg, A. (1925) Crustacea VIII: Amphipoda. In: Michaelsen, W. (Ed.), Beitrage zur Kenntnis der Meeresfauna Westafrikas. L. Friedrichsen & Co., Hamburg, pp. 111 - 204.
  • Penrith, M. - L. & Kensley, B. F. (1970) The constitution of the intertidal fauna of rocky shores of South West Africa, Part I. Luderitzbucht. Cimbebasia, (A), 1, 191 - 239.
  • Griffiths, C. L. (1974 a) The Amphipoda of southern Africa. Part 2. The Gammaridea and Caprellidea of South West Africa south of 20 ° S. Annals of the South African Museum, 62, 169 - 208.
  • Griffiths, C. L. (1975) The Amphipoda of southern Africa. Part 5. The Gammaridea and Caprellidea of the Cape Province west of Cape Agulhas. Annals of the South African Museum, 67, 91 - 181.
  • Coleman, C. O. & Leistikow, A. (2001) Supralittoral talitrid Amphipoda and oniscid Isopoda (Crustacea) from the Southwest African coast. Organisms Diversity & Evolution, 3 (Electronic Supplement), 1 - 32.
  • Lowry, J. K. & Coleman, C. O. (2011) Africorchestia a new genus of sand-hoppers (Crustacea, Amphipoda, Talitridae) from western Africa and south-western Europe. Zootaxa, 2825, 55 - 68.
  • Milne, R. & Griffiths, C. L. (2013) Additions to and revisions of the amphipod (Crustacea: Amphipoda) fauna of South Africa, with a list of currently known species from the region. African Natural History, 9, 61 - 90.
  • Cramb, P. H. (2015) The influence of coastal upwelling on the biodiversity of sandy beaches in South Africa. Phd Thesis, University of Saint Andrews, St Andrews, 277 pp.