Pseudorhombus oligodon (Bleeker, 1854)
Roughscale flounder
Pseudorhombus oligodon
photo by The Fish Database of Taiwan

Family:  Paralichthyidae (Large-tooth flounders)
Max. size:  30 cm SL (male/unsexed); max.weight: 169.8 g
Environment:  demersal; marine; depth range 30 - 40 m
Distribution:  Northwest Pacific: southern Japan to the South China Sea.
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 78-82; Anal spines: 0-0; Anal soft rays: 61-65; Vertebrae: 38-38. Two dark spots along gill opening below pectoral fin. Dark blotch a beginning of straight part of lateral line (Ref. 559). Soft ray count of pectoral fin refers to that on ocular side.
Biology:  Inhabits muddy and sandy bottoms of the continental shelf (Ref. 9774). Feeds mainly on small demersal fishes (Ref. 9774). Marketed fresh (Ref. 9774).
IUCN Red List Status: Least Concern (LC); Date assessed: 13 November 2019 Ref. (130435)
Threat to humans:  harmless


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