Fuegiphoxus fuegiensis ( Schellenberg, 1931 )

Alonso, G. M., 2012, Amphipod crustaceans (Corophiidea and Gammaridea) associated with holdfasts of Macrocystis pyrifera from the Beagle Channel (Argentina) and additional records from the Southwestern Atlantic, Journal of Natural History 46 (29 - 30), pp. 1799-1894 : 1883-1884

Fuegiphoxus fuegiensis ( Schellenberg, 1931)

Parharpinia fuegiensis Schellenberg, 1931: 78–80 , fig. 40.

Fuegiphoxus fuegiensis: Alonso de Pina, 2003: 1052–1054 , figs. 13, 14; Chiesa et. al., 2005: 169, 170, tb. 2; De Broyer et al., 2007: 187, 188; Alonso de Pina et al., 2008: 9, 10.

Material examined

Argentina; Beagle Channel, northern Isla Despard, 54 ◦ 52 ′ S, 68 ◦ 10 ′ W, 8–12 m depth, colls. D. Aureliano and A. Ferlito, don. G. Lovrich: 1 ovig. ♀ 7 mm, 2 ♀♀ 5.3 and 7 mm, 19 March 1999, MACN-In 38706. Same location, same colls., 24 May 1999: 1 ♀ 7 mm, 1 sex indet. 5.3 mm, MACN-In 38707a; 1 sex indet. 5.2 mm, MACN-In 38707b. Same location, same colls., 27 May 1999: 2 ♀♀ 6.05 and 6.7 mm, MACN-In 38708a; 3 ♀♀ 4.75–5.5 mm, 2 sex indet. 4.6 and 4.7 mm, MACN-In 38708b; 1 ♂ 6 mm, MACN-In 38708c. Same location, same colls., 5 August : 2 ♀♀ 5.75 and 6 mm, 1 sex indet. 5.5 mm, MACN-In 38709a; 1 ♂ 7 mm, MACN-In 38709b; 1 ovig. ♀ 8 mm, 11 August 1999, MACN-In 38710. Same location, same colls., 1 November 1999: 2 sex indet. 3.7 and 4.5 mm, MACN-In 38711a; 1 sex indet. 5.2 mm, MACN-In 38711b; 1 ovig. ♀ 7.2 mm, 2 ♀♀ 5.3 and 6 mm, MACN-In 38711c; 1 ♀ 7.05 mm, MACN-In 38711d. Same location, same colls., 10 February 2000: 1 ♀ 5 mm, 1 sex indet. 3.8 mm, MACN-In 38712a; 1 ♀ 5.75 mm, MACN-In 38712b; 1 ovig. ♀ 7 mm, 2 ♀♀ 6.1 and 6.85 mm, 1 sex indet. 5 mm, MACN-In 38712c; 1 sex indet. 4.8 mm, MACN-In 38712d; 1 sex indet. 5 mm, MACN- In 38712e; 2 sex indet. 2.3 and 3 mm, MACN-In 38712f; 1 ♂ 6 mm, 14 February 2000, MACN-In 38713. Same location, same colls., 2 May 2000: 1 ovig. ♀ 7 mm, 2 ♀♀ 6 mm, MACN-In 38714a; 1 sex indet. 4 mm, MACN-In 38714b. Same location, same colls., 29 May 2000: 1 ovig. ♀ 8 mm, 3 ♀♀ 5.5–7 mm, 1 sex indet. 4.5 mm, MACN-In 38715a; 1 sex indet. 4.9 mm, MACN-In 38715b. Santa Cruz province ; Ría Deseado , 47 ◦ 45 ′ S, 65 ◦ 55 ′ W: 3 ♀♀ 6.3–8.15 mm, 1 ♂ 6.7 mm, sandy and muddy beach, mid intertidal, 13 September 2003, coll. and don. J. P. Martin, MACN-In 38716. Río Negro province; shorewards from islote Lobos, 41 ◦ 25 ′ S, 65 ◦ 03 ′ W: 1 ♀ 5 mm, subtidal, 1972, colls. and dons. L. Orensanz and A. Escofet, MACN-In 38717. Knipovich survey; 1967, coll. V. Scarabino and don. L. Orensanz, sta 1055, 36 ◦ 16 ′ S, 54 ◦ 01.5 ′ W: 2 ♀♀ 5 mm, 92–96 m depth, MACN-In 38718; sta 1054, 35 ◦ 56 ′ S, 54 ◦ 15.7 ′ W: 1 ♀ 7 mm, 58–65 m depth, MACN-In 38719. Survey 9508; off Uruguay, grab type McIntyre, coll. M. Baronna, don. F. Scarabino, sta 25, 36 ◦ 15 ′ S, 54 ◦ 13 ′ W: 1 ♀ 5 mm, 65.5 m depth, 26 September 1995, MNHNM w / o n; sta 17, 35 ◦ 53 ′ S, 53 ◦ 27 ′ W: 1 ♀ 5.25 mm, 98.5 m depth, 24 September 1995, MNHNM w / o n .

Remarks

Fuegiphoxus fuegiensis ( Schellenberg, 1931) is widely distributed in the Magellanic area, being well represented in Argentina and Chile; it reaches Buenos Aires province and Valparaiso in the Atlantic and Pacific Oceans, respectively ( Alonso de Pina et al. 2008). This species is a sand-burrowing amphipod inhabiting different granulometric sediment substrates and also fissures with sand among rocks covered with epiflora and invertebrates. Present data extend the distribution of this species from the Beagle Channel to the north of the Argentine Sea and it is a new record in Uruguay. The presence of this scavening species in holdfasts of the kelp M. pyrifera was mentioned by Schellenberg (1931).