Paracallisoma alberti Chevreux, 1903

Kilgallen, Niamh M. & Lowry, James K., 2015, A review of the scopelocheirid amphipods (Crustacea, Amphipoda, Lysianassoidea), with the description of new taxa from Australian waters, Zoosystematics and Evolution 91 (1), pp. 1-43 : 14

Paracallisoma alberti Chevreux, 1903 Figures 22, 23

Paracallisoma alberti Chevreux, 1903: 84, figs 2, 3. - Stebbing 1906: 719. - Chevreux 1935: 39, pl. 1, fig. 3, pl. 9, fig. 2, pl. 16, fig. 5. - Birstein and Vinogradov 1955: 223, 279 (in part). - Schellenberg 1955: 191 (in part). - J.L. Barnard 1958: 97 (list). - Belloc 1960: 4. - Lampitt et al. 1983: 76, table 1. - Desbruyères et al. 1985: 236, fig. 1, 237. - Thurston 1990: 266. - Barnard and Karaman 1991: 511. - Palerud and Vader 1991: 41. - Lopes et al. 1993: 209, table 1. - Dauvin and Bellan-Santini 2002: 316 (table 1). - Horton 2006: 20, table 2. - Horton et al. 2013: 355, table 2.

Not Paracallisoma alberti . - Schellenberg 1926a: 258, fig. 11. - Birstein and Vinogradov 1962: 34. - Lowry and Bullock 1976: 102. - De Broyer and Jaždžewski 1993: 73. (= Paracallisoma sp. De Broyer et al. 2007).

Not Paracallisoma alberti . - Birstein and Vinogradov 1958: 228. - Birstein and Vinogradov 1960: 176, fig. 5, 233, fig. 33. - Gurjanova 1962: 309, fig. 102. - Nagata 1963: 1. - Birstein and Vinogradov 1970: table 1, table 3. - Hatch 1983: 194, 195, table 3. - Nysewander 1983: 328, table 7. - Hatch 2013: 275. (= Paracallisoma coecum ).

Not Paracallisoma alberti . - Birstein and Vinogradov 1964: 161. (= Paracallisoma sp.)

Not Paracallisoma aff. alberti Treude et al., 2002: 1284, table 2. (= Paracallisoma sp.)

Type material.

Syntypes: 1 female, 13 mm (stn 532); 3 females (stn 730); 5 males and 9 females (stn 792).

Type locality.

Azores region (37°52'N, 24°42.75'W), trap, muddy bottom with Globigerina , 2178 m [Princesse-Alice stn 532]; Azores region (37°58'N, 26°13.25'W), trap, muddy sand, 2660 m [Princesse-Alice stn 730]; Madeira region (32°32.16'N, 17°04.42'W), trap, bottom of blackish grey mud and fine grained sand, 2480 m [Princesse-Alice stn 792]. The co-ordinates given here are based on those reported in Chevreux (1935) rather than in the original publication ( Chevreux 1903), which used the Paris rather than the Greenwich meridian for calculating longitude.

Depth range.

1396-4780 m ( Horton 2006, Chevreux 1935).

Distribution.

North Atlantic Ocean. Porcupine Seabight ( Lampitt et al. 1983); Mid Atlantic Ridge ( Horton et al. 2013); Faroe-Shetland Channel ( Horton 2006). Portugal. Azores and Madeira region ( Chevreux 1903). France. Bay of Biscay ( Chevreux 1935, Desbruyères et al. 1985).

Ecology.

A scavenger, frequently taken in baited traps ( Chevreux 1903, 1935, Horton 2006, Horton et al. 2013).

Discussion.

The distribution of Paracallisoma alberti given here (Fig. 22) is much more limited than what has been reported in the literature. This follows Thurston (1990), who concluded that Paracallisoma alberti is restricted to the north-east Atlantic, as material recorded in the literature as Paracallisoma alberti from the Pacific Ocean was confirmed as or presumed to belong to Paracallisoma coecum (Holmes, 1908). The identity of material from the Indian Ocean and Arabian Sea ( Birstein and Vinogradov 1964, Treude et al. 2002) is unknown, but it is unlikely to be Paracallisoma alberti . Material from the Southern Ocean appears to be closely related to Paracallisoma platepistomum Andres, 1977 ( Thurston 1990).