Photostomias guernei Collett, 1889

Iglésias, Samuel P., Bariche, Michel, Beau, Florent, Bérenger, Lucas, Beucher, Renaud, Chabrolle, Antoine, Cottalorda, Jean-Michel, Cousin, Bertrand, Curd, Amelia, Danet, Valentin, Duhamel, Erwan, Duval, Audrey, Farque, Pierre-André, Goascoz, Nicolas, Jadaud, Angélique, Larnaud, Pascal, Bouter, Mathieu Le, Bras, Yvan Le, Bris, Sylvain Le, Lombard, Laurent, Louisy, Patrick, Mandine, Alain, Mas, Lise, Menut, Thomas, Metral, Luisa, Poussard, Pierre, Quéro, Jean-Claude, Raybaud, Virginie, Renoult, Julien P., Richard, Thomas, Spitz, Jérôme, Ternon, Quentin, Thiriet, Pierre & Tournier-Broer, Ruben, 2021, French ichthyological records for 2019, Cybium 45 (3), pp. 169-188 : 173

Photostomias guernei Collett, 1889

A Loosejaw, Stomiidae ( Fig. 3A ), was collected on 27 Oct 2019 during the EVHOE survey, using a pelagic trawl. It was collected in the Bay of Biscay ( Spain), at Station X0476 (43.7029 / 43.6343 °N, 2.1974 / 2.1887 °W), at 703- 754 m depth above a 1225 m deep continental slope. The fresh specimen, a female according to head photophore size, measured 135 mm TL, 132 mm FL, 127 mm SL, 14 mm HL, and weighed 8.0 g. D: 25, A: 27; two pairs of tooth patches on the basibranchial; postorbital organ (PO) 10.0% upper jaw length and 56.7% fleshy orbit. This specimen was preserved with the collection No. MNHN-IC 2021-0141 and a tissue sample was preserved under No. BPS-4269. Recorded by J. Spitz and S.P. Iglésias. Three species of Photostomias are currently known in the Atlantic Ocean, P. atrox Alcock, 1890 , P. guernei Collett, 1889 and P. goodyeari Kenaley & Hartel, 2005 . These species are distinguished mainly on the basis of the count of the dorsal and anal fin rays, the number of pairs of tooth patches on the basibranchial and the relative size of PO ( Kenaley and Hartel, 2005). The present specimen may be the northernmost record of this bathypelagic species for the Atlantic Ocean and the first record for the Bay of Biscay. As it was collected in Spanish waters, close to the border of the French EEZ, it is not an addition to the “Checklist of the marine fishes from metropolitan France ” ( Béarez et al., 2017). It can nevertheless be assumed that the species is present in the French EEZ.

Figures

Figure 3. – Significant French ichthyo- logical records for 2019 (continued). A: Photostomias guernei, 135 mm TL, 27 Oct 2019, MNHN-IC 2021-0141 (© S.P. Iglésias); B: Ijimaia loppei, 740+ mm long, 27 Oct 2019, MNHN- IC 2021-0142 (© S.P. Iglésias); C: Echiodon drummondii, 268 mm TL, 25 Nov 2019 (© S.P. Iglésias).