Arnoglossus japonicus Hubbs, 1915
Japanese lefteye flounder
扁鱼,  日本羊舌鲆,  日本舌鲆,  皇帝鱼,  日本羊舌鮃
Arnoglossus japonicus
photo by Shao, K.T.

Family:  Bothidae (Lefteye flounders)
Max. size:  17 cm TL (male/unsexed)
Environment:  demersal; marine; depth range 85 - 154 m
Distribution:  Indo-West Pacific: southern Japan to the South China Sea. Also recorded from northwestern Australia (Ref. 5978) and New Caledonia (Ref. 9824).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 99-106; Anal spines: 0-0; Anal soft rays: 76-83. Snout sharp. Maxillary extending to below or beyond middle of lower eye. No gill rakers on upper limb. Cycloid scales on ocular side. Caudal fin having 3 simple upper and lower rays. No dark blotch on pectoral and pelvic fins. Second dorsal fin ray elongated in male.
Biology:  Inhabits bottoms with broken coral, shell, pebbles, and gray mud. Feeds on bottom-living animals.
IUCN Red List Status: Least Concern (LC); Date assessed: 03 March 2015 Ref. (130435)
Threat to humans:  harmless
Country info:  Known from the South China Sea in Guangdong Province to the East China Sea in the Zhejiang Province (Ref. 33837). Known from the South China Sea in Guanghai and Shanwei in Guangdong Province, also from the East China Sea in the Zhoushan Islands and Mayi Island in Puto, Zhejiang Province(Ref.33837).


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