Africorchestia spinifera ( Mateus, 1962 )

Lowry, James K. & Coleman, Charles Oliver, 2011, Africorchestia a new genus of sand-hoppers (Crustacea: Amphipoda: Talitridae) from western Africa and south-western Europe, Zootaxa 2825, pp. 55-68: 62-65

publication ID

http://doi.org/ 10.5281/zenodo.277263

publication LSID

lsid:zoobank.org:pub:8484DF52-5964-4D9F-B4CF-E159E6B8D636

persistent identifier

http://treatment.plazi.org/id/03BE87D2-FFB7-EE6A-FF28-6FBAFADBFD04

treatment provided by

Plazi

scientific name

Africorchestia spinifera ( Mateus, 1962 )
status

 

Africorchestia spinifera ( Mateus, 1962) 

( Figs 5View FIGURE 5, 6View FIGURE 6)

? Orchestoidea fischeri  . ― Chevreux, 1911: 231 (in part).

Orchestia spinifera Mateus, 1962: 10  , figs 1–20. ― Marques & Bellan-Santini, 1985: 332, 352, table 1. Talorchestia spinifera  . ― Amanieu & Salvat, 1963: 69, fig. ― El Kaim, 1963: 169. ― Amanieu & Salvat, 1965: 59, figs 2–6. ― Marfin, 1983: 232, figs 2, 3. ― Menioui & Bayed, 1986: 112.

Types. Holotype, male, 16 mm, IZAN 90. Paratypes: IZAN.

Type locality. Beaches of River Guadiana at Vila Real de Santo Antonio, Portugal (~ 37 ° 10.9 ’N 7 ° 24.2 ’W).

Diagnosis. Based on male. Gnathopod 2 propodus ovate, palm extremely acute, subsigmoidal, extending about 75 % along posterior margin, without rounded protuberance near dactylar hinge, with shallow distal notch, with two rows of robust setae along entire margin, without proximal tooth; dactylus subequal in length to palm. Pereopods 6–7 much longer than pereopods 3–5. Pereopod 6 longer than pereopod 7; basis expanded posteriorly. Pleonite 1 with a pair of dorsodistal pointed spines. Pleonite 2 with 2 pairs of dorsal pointed spines. Pleonite 3 with 1 anterior pair of longer pointed spines and a pair of ridge-like posterodistal rounded protrusions. Uropod 3 ramus subequal in length to peduncle, 3.3 x as long as broad. Telson  entire apically notched with 11 apical robust setae on each side.

Remarks. Apparently A. fischeri  and A. spinifera  both have two dorsodistal spines on pleonite 1. They have very differently shaped male second gnathopods and in A. fischeri  the basis of pereopod 6 is grossly enlarged and vertically ovate.

Distribution. France. Bay of Biscay: Isle aux Oiseaux, Arcachon, 44 ° 42.1 ’N 1 ° 10.5 ’W ( El Kaim 1963); Arcachon, 44 ° 39.6 ’N 1 ° 8.6 ’W ( Amanieu & Salvat 1965). Morocco. Estuaries of Oued Ghrifa, Asilah, ~ 35 ° 31 ’N 06°00’W (current study); Bou Regreg, 34 ° 2.3 ’N 6 ° 49.9 ’W ( El Kaim 1963; Amanieu & Salvat 1965; Meniou & Bayed 1986); Agadir, Massa, Sidi Ifni, 29 ° 23 ’N 10 ° 10.5 ’W ( Marfin 1983). Portugal. River Guadiana, 37 ° 10.2 ’N 7 ° 22.8 ’W ( Mateus 1962). Spain. Cadiz, 36 ° 31.8 ’N 6 ° 18.4 ’W ( Chevreux 1911; Amanieu & Salvat 1983).

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Talitridae

Genus

Africorchestia

Loc

Africorchestia spinifera ( Mateus, 1962 )

Lowry, James K. & Coleman, Charles Oliver 2011
2011
Loc

Orchestia spinifera

Menioui 1986: 112
Marques 1985: 332
Marfin 1983: 232
Amanieu 1965: 59
Amanieu 1963: 69
El 1963: 169
Mateus 1962: 10
1985
Loc

Orchestoidea fischeri

Chevreux 1911: 231
1911