Neognathophausia gigas ( Willemoes-Suhm, 1873 )

Hendrickx, Michel E., 2019, Species of Gnathophausiidae (Crustacea, Lophogastrida) collected off the west coast of Baja California, Mexico, during the TALUD cruises, Zootaxa 4609 (3), pp. 449-468 : 456

Neognathophausia gigas ( Willemoes-Suhm, 1873)

Gnathophausia gigas Willemoes-Suhm, 1873: 400 , figs. 4–5.

Gnathophausia gigas .―Willemoes-Suhm, 1874: iii; 1875b: 28, 37, pl. IX, figs. 16–17, pl. X, figs. 2, 2a, 3.― Humbert, 1874: 206.―G.O. Sars, 1883: 5; 1885: 33, pl. III.― Stebbing, 1893: 260.― Ortmann, 1905: 968; 1906: 36, pl. 2, figs. 1a–b; 1908: 1.― Zimmer, 1909: 33, figs. 48–51.―W.M. Tattersall, 1913: 868; 1925: 3; 1939: 225.― Hansen, 1927: 17, pl. I, fig. 4a–d.― Stephensen, 1933: 9.―W.M. Tattersall, 1933: 185; 1939: 225.― Fage, 1941: 24, fig. 26.― Nouvel, 1943: 12, pl. 1, figs. 5–11; 1950: 3, figs. 13–16 (fiche 19).― Banner, 1948: 357 –358, pl. I, fig. 1a–c; 1954: 578.―W.M. Tattersall, 19 51: 26.―W.M. Tattersall & O.S. Tattersall, 1951: 77, fig. 1a–d, 2a–d.―O.S. Tattersall, 1955: 36, Table 2 .― Gordan, 1957: 332.―Birstein & Tchindonova, 1958: 260, 338, fig. 46; 1962: 58.― Clarke, 1961: 313 –324 (passim), figs. 1–8, Table I– IV.― Pequegnat, 1965: 400, 402 (key), 408, fig. 5, Tables 1 , 3, 411–420 (passim).― Holthuis & Sivertsen, 1967: 40.― Taniguchi, 1969: 44, fig. 2a–c.― Mauchline, 1973: 803.― Ledoyer, 1977: 253; 1995: 602, 614.― Mauchline & Murano, 1977: 57.― Udrescu, 1984: 65, fig. 5A.― Kathman et al., 1986: 158.― Lagardère, 1983: 810.― Casanova et al., 1998: 60.― van der Land & Brattegard, 2001: 293 (list).― Haroun & Garrido, 2003: 68.― Brusca & Hendrickx, 2005: 141.― Price et al., 2009: 924 (passim), 927 (list).― Meland & Aas, 2013: 200 , fig. 1, 219 (key).― Wittmann et al., 2014: 349 (list).

Gnathopausia gigas .― Fowler, 1912: 539.― Illig, 1930: 408.― Stephensen, 1933: 9.

Gnathophausia sp.― Smith, 1884: 55.― Verrill, 1885: 556.

Gnathophausia drepanophora Holt & Tattersall, 1905: 113 , pl. XVIII.― Ortmann, 1906: 38.― Zimmer, 1909: 33, figs. 52–53.

Neognathophausia gigas .― Petryashov, 1992: 47 –48, pl. 1, figs. 1–5; 2014: 185; 2015: 242 (list).― Wittmann & Wirtz, 1998: 512 (list).― Lowry & Stoddart, 2003: 426.― Sawamoto, 2015: 4, Table 1 .― Sawamoto & Fukuoka, 2005: 81, Table 1 .― Ibarra Rivera & Hendrickx, 2008: 57 (list), 65 (key), 75, figs. 24, 25A–D.― Fukuoka, 2009: 405, 406 ( Table 1 ).― Wittmann & Riera, 2012: 70.― San Vicente, 2016: 486 , 495 (key).

Material examined. TALUD XV, St. 10 (24º20'42"N, 112º44'48"W), Jul 29, 2012, 1 juv. (CL 19 mm), BS operated at 2088–2125 m (ICML-EMU-12305) .

Distribution. Semi-cosmopolitan, between 66°N and 48°S; Atlantic, Pacific and Indian Oceans ( Ibarra Rivera & Hendrickx 2008). According to Ibarra Rivera & Hendrickx (2008), G. gigas is commonly found in the California Current area. It is herein reported from a single locality along the west coast of the Baja California Peninsula ( Fig. 6 ), which is less than expected.

Remarks. The rarity of specimens in the samples obtained off western Baja California contrasts with results obtained by Ibarra Rivera & Hendrickx (2008) who reported material from nine localities in the California Current area. These localities, however, were mostly further away from the coast line than in the present study ( Fig. 5 ).

Figures

FIGURE 5. Localities where Gnathophausia scapularis Ortmann, 1906 and G. zoea Willemoes-Suhm, 1873, were collected during this survey.

FIGURE 6. Localities where Neognathophausia gigas (Willemoes-Suhm, 1873) and N. ingens (Dohrn, 1870) were collected during this survey.