Arnoglossus yamanakai

description

Specimens examined. NMMB-P 22849 (2, 87.2 – 87.3), Ke-tzu-liao, 28 Mar. 2015; NMMB-P 23270 (2 males, 86.2 – 97.9, 2 females, 82.7 – 88.9), Ke-tzu-liao, 28 Feb. 2016; NMMB-P 23314 (1 male, 94.9), 18 Mar. 2016; NMMB- P 25674 (3 males, 1 female, 92.7 – 95.4), Ke-tzu-liao, 27 Dec. 2016; NMMB-P 25685 (5 males, 1 female, 89.5 – 95.7), 2 Apr. 2015; NMMB-P 25696 (1 female, 84.7), 20 Jan. 2017; NMMB-P 25715 (1 male, 1 female, 85.9 – 89.8), Ketzu-liao, 22 Apr. 2016 Diagnostic features. D 99 – 107; A 77 – 83; P 12 – 13; C 3 + 11 + 3 = 17; LLs 60 – 68; GR 0 + 7 – 8 = 6 – 9; vert. 11 – 12 + 33 – 34 = 44 – 45. Body elongated, greatest depth near anterior 1 / 3 part of body (34.2 – 38.0 % SL). Head small, its length about 67 – 76 % body depth (23.8 – 27.0 % SL); front of head with very slight concavity in front of upper eye; head profile gentle, same in both sexes. Snout rather round, snout length shorter than eye diameter. Rostral spine absent on tip of snout in both sexes. Eye diameter much shorter than upper jaw length; upper eye close to dorsal margin of head, its width about 1 / 3 of eye diameter. No orbital spines in both sexes. Interorbital space with narrow bony ridge extending from anter

The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan

discussion

Remarks. This species resembles A. japonicus in having an elongate second dorsal-fin ray in males and similar numbers of dorsal- and anal- fin rays, but differs by characters described in the remarks of A. japonicus. The adult size is smaller than A. japonicus. This is the first record of the species from Taiwan.

The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan

distribution

Distribution. Southwestern Taiwan off Ke-tzu-liao, Kaohsiung, at depth not more than 100 m; Western Pacific Ocean (Amaoka, 2016)

The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan