Hureau's flounder

description

Description of Taiwanese specimen. Meristic and morphometric data are provided in Tables 1, 2. Dorsal-fin rays 74. Anal-fin rays 51. Caudal-fin rays 3 + 11 + 3. Pectoral-fin rays 11 and 9 on ocular and blind sides, respectively. Pelvic-fin rays 6 on both ocular and blind sides. Gill rakers on first arch 0 + 6 = 6. Lateral-line scales ca. 38, not including 3 scales on caudal fin. Vertebrae 10 + 23 = 33. Body oval, greatest depth 1.7 in SL; its dorsal and ventral profiles convex and nearly symmetric. Head length 3.8 in SL; anterior profile of head rounded, and no distinct notch above snout. Snout length 4.6 in HL, distinctly shorter than both eyes. Rostral spine present on snout. Eyes sinistral, upper- and lower-eye diameter 3.3 and 3.5 in HL, respectively; anterior margin of both eyes at same vertical level. No orbital spines and ocular flaps. Interorbital space concave, its width 4.5 in HL. Two nostrils on ocular side, with anterior nostril forming tube, and situated on snout behind rostral spine; posterior nostril forming single pore, situated anterior to lower eye. Two nostrils on blind side, both minute, with anterior one forming short tube and posterior one forming pore; both s

First record of Engyprosopon hureaui (Actinopterygii, Pleuronectiformes, Bothidae) from Taiwan, with a revised key to Engyprosopon in Taiwan

description

English name: Hureau’s flounder Chinese name: 圓頭短額鮃 Figs 1, 2; Tables 1, 2.

First record of Engyprosopon hureaui (Actinopterygii, Pleuronectiformes, Bothidae) from Taiwan, with a revised key to Engyprosopon in Taiwan

distribution

Distribution. Known from scattered localities in the Indo – West Pacific, including Gulf of Aqaba (type locality), Maldives (Regan 1908; Anderson et al. 1998), New Caledonia (Amaoka et al. 1993), Australia (Hoese and Bray 2006), and southern Japan (Amaoka and Kishimoto 1996; Motomura 2023). Inhabits at depths of 1 – 81 m (Amaoka et al. 1993). Our specimen represents the first record from Taiwan and fills the distribution gap of this species in the northwestern Pacific Ocean. The specimen was collected within the silver-stripe round herring (Spratelloides gracilis) fishery, and other non-target species such as Parapriacanthus ransonneti Steindachner, 1870, Upeneus heterospinus Uiblein et Pavlov, 2019, and Parapercis pulchella Temminck et Schlegel, 1843, at depths not exceeding 30 m.

First record of Engyprosopon hureaui (Actinopterygii, Pleuronectiformes, Bothidae) from Taiwan, with a revised key to Engyprosopon in Taiwan