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Pleuronectiformes (Flatfishes) >
Oncopteridae (Remo flounders)
Etymology: Oncopterus: Greek, onyx, -ychos = nail + Greek, pteron = wing, fin (Ref. 45335).
Eponymy: Charles Robert Darwin (1809–1882) was the prime advocate, together with Wallace (q. [...] (Ref. 128868), visit book page.
More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 20 - 80 m (Ref. 27363). Subtropical; 33°S - 44°S, 67°W - 51°W (Ref. 56859)
Southwest Atlantic: Santa Catarina, Brazil to Golfo de Sán Matías, Argentina.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 30.4 cm SL male/unsexed; (Ref. 27363); common length : 25.0 cm TL male/unsexed; (Ref. 6077)
Dorsal spines (total): 0; Dorsal soft rays (total): 59 - 67; Anal spines: 0; Anal soft rays: 41 - 46. Pectoral fin with 12 soft rays on ocular side, 11 on blind side. Strong spine anterior to anal fin, prominent in young specimens. Lateral line with a distinct curve above pectoral fin and with several transverse accessory branches. Pale brownish, covered with many small white spots; some larger white spots at upper and lower edges of body (Ref. 27363).
Body shape (shape guide): short and / or deep.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Cervigón, F. and W. Fischer, 1979. INFOPESCA. Catálogo de especies marinas de interes economico actual o potencial para América Latina. Parte 1. Atlántico centro y suroccidental. FAO/UNDP, SIC/79/1. 372 p. FAO, Rome. (Ref. 6077)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
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