Actinopterygii (ray-finned fishes) >
Pleuronectiformes (Flatfishes) >
Paralichthyidae (Large-tooth flounders)
Etymology: Pseudorhombus: Greek, pseudes = false + Greek, rhombos = paralelogram (Ref. 45335). More on author: Regan.
Environment / Climate / Range
Ecology
Marine; demersal; depth range 50 - 150 m (Ref. 90102). Tropical, preferred ?
Indo-West Pacific: Nicobar Islands and throughout most of the Indo-Australian Archipelago, north to southern Japan (Ref. 9774).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 9774); common length : 25.0 cm SL male/unsexed; (Ref. 9774)
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 72-78;
Anal
spines: 0;
Anal
soft rays: 56 - 63;
Vertebrae: 36. Above and below lateral line with 1 or 2 pairs of distinct double ocelli. Many darker rings and spots scattered on body and median fins. Body ovoid, its depth 2.2 to 2.4 times in SL. Head length 3.4 to 3.7 times in SL. Upper profile of head strongly notched in front of upper eye. A line connecting base of first dorsal-fin ray and posterior nostril on eyed side crosses maxilla. Snout protruded, its length 1 to 1.3 times of eye diameter. Eye diameter 4.3 to 5 times in head length. Maxilla extending to below or beyond middle of lower eye. Teeth in both jaws small, without strong canines (Ref 9774). Gill rakers palmate, as broad as long. Two to four large double ocelli on body (Ref. 559).
Inhabits muddy and sandy bottoms of the continental shelves. Feeds on fish (Ref. 30463, 48637) and small benthic animals. Marketed fresh (Ref. 9774).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing (Ref. 205).
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial
More information
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00365 - 0.01649), b=3.15 (2.97 - 3.33), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic Level (Ref.
69278): 4.2 ±0.73 se; Based on food items.
Resilience (Ref.
69278): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100) .