Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Sciaenidae (Drums or croakers)
Etymology: Plagioscion: Greek, plagios = oblique + Greek, skiaina, skion = barbel, red mullet (Ref. 45335); casattii: Named for Lilian Casatti.
Eponymy: Lilian Casatti is a Brazilian ichthyologist, biologist and ecologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Orinoco River, Venezuela.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 27 - ? cm
Max length : 33.0 cm SL male/unsexed; (Ref. 36888)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 11; Dorsal soft rays (total): 31 - 36; Anal spines: 2; Anal soft rays: 6 - 7. Body nearly uniform silvery, lighter ventrally; darker dorsally; no conspicuous spots but with diffuse dark areas along base of dorsal fin, on margin of spinous and soft dorsal fin, and hind margin of caudal fin; base of pectoral fins with a brown spot. Eye elliptical, 5.3-6.2 in HL; second anal spine length 4-6.3 (mean 5.2) in HL. Anus-anal distance 2.8-5.1 (mean 4.2) in HL. Tips of pelvic-fin rays not extending to anus. Anterior portion of dorsal fin with 10 spines, posterior with 1 and usually 33-34 soft rays. Sagitta elongate and oblong; ostium apple-shape; tip of caudal not extending to below hind margin of the ostium, postero-ventral angle rounded. Caudal fin rhomboid (Ref. 44362).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Aguilera, O. and D.R. de Aguilera, 2001. A new species of croaker Plagioscion (Perciformes, Sciaenidae) from the Orinoco River Basin, Venezuela. Memoria 60(153):61-67. (Ref. 44362)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
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