Phoxorgia sinuata K.H. Barnard 1932

Phoxorgia sinuata (K.H. Barnard, 1932)

Barnard K.H., 1932: 12, 17, 103–104, fig. 52. (Parharpinia sinuata). Schellenberg, 1931: 75–78, fig. 39. (Parharpinia villosa, in part). Schellenberg, 1935: 232. (Parharpinia villosa).

Barnard J.L., 1958 a: 147–148. (Paraphoxus sinuatus). Barnard J.L., 1958b: 118. (Paraphoxus sinuata).

Barnard J.L., 1960: 186, 195, 271, 278–282, 283, 285, pl. 45. (Paraphoxus sinuatus). Thurston, 1974a: app. C. (Parharpinia sinuata).

Andres, 1975: 92, 96, 97. (Paraphoxus villosus).

Barnard and Drummond, 1976: 527. (Paraphoxus sinuata). Lowry and Bullock, 1976: 128. (Paraphoxus sinuatus). Barnard and Drummond, 1978: 32, 146. (To a genus to be described). Barnard and Barnard, 1980: 869–874, fig. 7.

Barnard and Barnard, 1990: 110.

Barnard and Karaman, 1991: 627.

Gonzalez, 1991: 61.

De Broyer and JaŻdŻewski, 1993: 84.

De Broyer and Rauschert, 1999: 286.

Chiesa et al., 2005: 169, 171, fig. 2C, table 2.

Distribution: G + M +

Magellan Area: Schwedische Expedition nach den Magellansländern 1895–1897, Punta Arenas, 53°10’S 70°54’W, 13–14 m (bottom: sand, algae); Bahía Inutil, 53°30’S 69°45’W, 20–54 m (bottom: coralline algae nodules, grey-whitish shells); Isla Nueva, [55°14’S 66°33’W], 54 m (bottom: shells); Tierra del Fuego, 54°43’S 64°08’W, 36 m (bottom: pebble, calcareous algae) (revised by JLB 60, B&B 80); Hamburger Magalhaensische Sammelreise 1892–1893, Smyth Channel, [52°15’S 73°40’W], 14 m; 43°S 60°W, 11 m (AS 31); “William Scoresby” 1926–1927, sta. WS 88, 54 °00’S 64°57’W, 118 m (bottom: sand, shells, stones; gear: commercial otter trawl) (KHB 32); Albatros, Estecho de Magallanes, 52°41’00”S 69°55’30"W, 38 m (B&B 80); Isla Gable, 54°54’S 67°21’W, 15–20 m (gear: dredge); “Eduardo Holmberg” Survey, 52.342S 65.372W, 118 m, (stomach content of Bathyraja macloviana) (coll. Bellegia 2004) (GMA unpubl.); “Eduardo Holmberg” Survey, 52.549S 66.099W, 104 m, (stomach content of Bathyraja macloviana) (coll. Bellegia 2005) (GMA unpubl.); Punta Moat, 55°02’S 66°42’W, 15–25 m (gear: dredge); Bahía Sloggett; 55°00’S 66°21’W, 15–27 m (gear: dredge); Bahía Golondrina, 54°49’–50’S 68°14’–20’W, 5 m (gear: Snapper grab); Bahía Buen Suceso, 54°47’S 65°14’W, 12 m (gear: dredge); Cabo San Pío, 55°03’S 66°37’W, 30–55 m (gear: dredge) (ICH et al. 05); Magellan “Victor Hensen” Campaign 1994, Estrecho Gente Grande, Laredo Bay, sta. 924, 52 °56.8’S 70°18.6’W, 17 m (gear: small dredge); Estrecho Laredo, sta. 960, 52 °57.9’S 70°43.4’W, 36 m (gear: Agassiz trawl); sta. 963, 52 °57.9’S 70°43.5’W, 38 m (gear: small dredge); Estrecho Paso Ancho St. 16, sta. 972, 53 °28.8’S 70°21.9’W, 92 m (gear: small dredge); Paso Goree, sta. 1164, 55 °18.8’S 67°05’W, 24 m (gear: small dredge); sta. 1165, 55 °18.6’S 67°08.5’W, 42 m (gear: multiboxcorer); Punta Rico, sta. 1176, 55 °07.3’S 66°53’W, 25 m (gear: small dredge); Isla Wollaston, sta. 1204, 55 °38.4’S 67°12.4’W, 40 m (gear: small dredge); SE Isla Picton, sta. 1216, 55 °07.2’S 66°40.2’W, 67 m (gear: small dredge); sta. 1221, 55 °07.6’S 66°44.6’W, 33 m (gear: small dredge); Crucero CIMAR FIORD 3 (“Vidal Gormaz” Cruise), Canal Beagle, Puerto Williams, sta. 41, 54 °53.8’S 67°34.5’W, 35 m (MR unpubl.).

South Georgia: “Discovery” 1925–1927, sta. 159, 53 °52’S 36°08’W, 160 m (bottom: rock; gear: large heavy dredge) (KHB 32).

Depth range: 5– 160 m.

Type-locality: South Georgia: “Discovery” 1925–1927, sta. 159, 53 °52’S 36°08’W, 160 m (bottom: rock; gear: large heavy dredge) (KHB 32).

Ecology: Collected from bottoms with sand, stones, rock, shells, algae.

Extralimital distribution: Schwedische Expedition nach den Magellansländern 1895–1897, Chile: Valparaiso, [33°01’S 71°37’W], 11–22 m (revised by JLB 60, B&B 80); Hamburger Magalhaensische Sammelreise 1892–1893, 38°S 56°W, 94 m (AS 31); Valparaiso, [33°01’S 71°37’W] (HGA 75); Bahía La Herradura, 29°58’S 71°22’W (EG 91).

Extralimital depth range: 11– 94 m.

Type material location: NHM, London.

Remarks: Barnard and Barnard (1980) erected the genus Phoxorgia on the basis of some morphological characters such as the apical group of setae on article 2 of antenna 1, the naked ventral margin of basis peraeopod 7, the scarce posterior setation of epimera 1 and 2 and setae on the telson. Although this genus is similar to Parharpinia Stebbing, 1899 from Australia, and these characters could not be adequate to segregate it, it was correct to separate both genera since some of Phoxorgia plesiomorphic character-states correlate with its distribution in southern South America.

Phoxorgia sinuata, the unique species in the genus, has been recorded lately from southern Tierra del Fuego (Chiesa et al., 2005) and southern Chile (Rauschert, unpubl.); Alonso de Pina (unpubl.) expanded its distribution in the southern Atlantic.