Exosphaeroma gigas (Leach, 1818)

Fig. 2E, F

Sphaeroma gigas Leach, 1818: 346-347; Desmarest 1825: 301; Milne-Edwards 1840: 205; White 1847: 102; Dana 1853: 775; Miers 1879: 202-203; Haswell 1882: 287; Studer 1884: 17-18; Dollfus 1891: 62, pl. 8a, fig. 6. Miers 1879: 202-203; Haswell 1882: 287; Studer 1884: 17-18; Dollfus 1891: 62, pl. 8a, fig. 6.

Sphaeroma jurinii .- Krauss, 1843: 65.

Sphaeroma propinqua .- Nicolet, 1849: 277-278.

Sphaeroma chilensis .- Dana, 1853: 195-196.

Sphaeroma obtusa .- Hutton, 1879 (in Chilton 1906).

Exosphaeroma gigas .- Stebbing, 1900: 553-558, pl. 39; Chilton 1906: 271-272; Ortmann 1911: 646-647; Vanhöffen 1914: 510-511; Tattersall 1921: 216; Giambiagi 1925: 235; Stephensen 1927: 362; Nierstrasz 1931: 194; Barnard 1940: 413, fig. 13; Hurley 1961: 269; Hale 1929: 275, fig. 273; Menzies 1962a: 132-134, fig. 43; Kussakin 1967: 235; Hurley and Jansen 1977: 58, fig. 52; Carvacho, 1977: 177-178; Kussakin and Vasina1980: 355-359; Brandt and Wägele 1989: 209-214. figs 5-9; Bruce 2003: 368.

Type locality.

Unknown; The Natural History Museum, syntypes: 1941: 6:27: 5 (presented by Leach) and 1979: 420: 1, Sir Joseph Banks collection (Ellis 1981).

Material examined.

Chile. 22 ♂♂ (up to 24 mm), 50 ♀♀ (up to 18 mm); Magallanes and Chilean Antarctica Region, Picton Island; 7 Feb. 1970; E.L. Bousfield leg.; CMNC 1990-0090. 46 ♂♂ and ♀♀; Magallanes and Chilean Antarctica Region, Navarino Island; 29 Jan. 1970; E.L. Bousfield leg.; CMNC 1990-0092. 300 ♂♂ and ♀♀; Magallanes and Chilean Antarctica Region, Canal Beagle; 19 Feb. 1970; E.L. Bousfield leg.; CMNC 1990-0094. FALKLAND. 1♀ (16 mm); Atlantic Ocean, Falkland Island, East Falkland; 1 Feb. 1969; S.W. Gorham leg.; CMNC 1992-0545. 9 ♂♂ and ♀♀ (up to 18 mm); East Falkland; 25 Jan. 1967; S.W. Gorham leg.; CMNC 1992-0552 .

Distribution.

Magallanes and Chilean Antarctica Region, Tierra del Fuego, Falkland Islands, Crozet Islands, Kerguelen Islands, Peru, South Africa, South Australia, New Zealand (Chatham Rise, Macquarie Island, Auckland Island, Campbell Island), Tasmania (Dana 1853; Vanhöffen 1914; Tattersall 1914; Kussakin 1967; Brandt and Wägele 1989).