Micrenophrys lilljeborgii (Collett, 1875)

Iglésias, Samuel P., Bergot, Patricia, Breton, Pascal, Brunelle, Stéphanie, Camusat, Mathieu, Causse, Romain, Charbonnel, Éric, Chevaldonné, Pierre, Cordier, Yves, Cosquer, Paul, Cuillandre, Jean-Pierre, Curd, Amelia, Dubas, Rémy, Duhau, Muriel, Derrien-Courtel, Sandrine, Devique, Gabriel, Dixneuf, Stéphane, Duhamel, Erwan, Farque, Pierre-André, Francour, Patrice, Fontana, Yann, Gamon, Adelaïde, Gicqueau, Charly, Goascoz, Nicolas, Hassani, Sami, Jadaud, Angélique, Kopp, Dorothée, Lamour, Laure, Bris, Sylvain Le, Lévèque, Laurent, Liger, Pablo, Lorance, Pascal, Louisy, Patrick, Maran, Vincent, Méhault, Sonia, Metral, Luisa, Morin-Repinçay, Alizée, Mouchel, Olivier, Pere, Anthony, Quéro, Jean-Claude, Renoult, Julien P., Roche, François, Schweyer, Livier, Spitz, Jérôme, Thiriet, Pierre & Thomas, Wilfried, 2020, French ichthyological records for 2018, Cybium 44 (4), pp. 285-307 : 294

Micrenophrys lilljeborgii (Collett, 1875)

A Norway bullhead, Cottidae ( Fig. 4G ), was collected by S.P. Iglésias on 30 Oct. 2018 while underwater fishing for the shrimp Palaemon serratus (Pennant, 1777) with handnet about 20 m off the beach of Trévignon (Tregunc, Finistère, France), at 47.8002°N, – 3.8534°W, at 3 m depth during low tide. The specimen measured 36 mm TL, 29 mm SL, 11.5 mm HL and weighed 0.76 g. D1: V; D2: I+10; A: 8; V: I+2; P: 15. The specimen was collected on a shady gra- nitic wall colonized by a thin layer of filamentous seaweeds and the large gorgonians Eunicella verrucosa (Pallas, 1766) , with presence of individuals of P. serratus and Tripterygion delaisi Cadenat & Blache, 1970 . The specimen was preserved with the collection No. MNHN-IC 2020-0094 and a tissue sample was preserved under No. BPS-4218. The unusual first dorsal fin for this specimen (5 ray counts instead of 8-11), very small and starting well behind the edge of operculum (when it normally starts before it) is viewed as a teratological character. It is the first record for Finistère and the 6 th record for French waters. The five previous French records were estimated from ~ 4 to 8 cm TL, they were observed from 9 Sep. 2010 to 6 May 2016 in coastal waters of Côtes d’Armor and Morbihan (Brittany, France), from intertidal area to 15 m depth ( Limouzin et al., 2015a, 2016, 2017; Gully et al., 2016). These records represent a southern extension of the known distribution range for the species. Rather than signifying a recent range expansion, these records more likely indicate past confusions with juveniles of Taurulus bubalis (Euphrasen, 1786) or Myoxocephalus scorpius (Linnaeus, 1758) . For instance, a 3 cm long specimen of this species was wrongly identified as a juvenile T. bubalis by Louisy (2005, 2015); it was photographed in Ploumanach (Côtes d’Armor, northern Brittany) in August 1998, on an overhanging wall at 20 m depth.

Figures

Figure 4. – Significant French ichthyological records for 2018 (continued). A: Regalecus glesne, ~160 cm TL, 5 Apr. 2018 (reversed photograph); B: Luvarus imperialis, 140 cm TL, 18 Jun. 2018 (Photograph: Martial Hascoet); C: Raniceps raninus, ~16+ cm TL, 24 Jun. 2018; D: Raniceps raninus, ~30 cm TL, 10 Aug. 2018; E: Trigla lyra, 295 mm TL, 26 Oct. 2018, MNHN-IC 2020-093; F: Lepidotrigla dieuzeidei, 125 mm TL, 24 Oct. 2018; G: Micrenophrys lilljeborgi, 36 mm TL, 30 Oct. 2018, MNHN-IC 2020-0094; H: Howella atlantica, 111 mm TL, 27 Oct. 2018, MNHN-IC 2020-0095; I: Pomatomus saltatrix, 41 cm TL, 20 Nov. 2018; J: Serranus cabrilla, ~25 cm TL, 12 Feb. 2018.