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Ovalentaria/misc (Various families in series Ovalentaria) >
Polycentridae (Leaffishes)
Etymology: Polycentrus: Greek, poly = a lot of + Greek, kentron = sting (Ref. 45335); jundia: The specific name is derived from the Tupi word 'jundiá' meaning 'head with spine', and refers to the large amount of serrations present on the head bones of the new species. A noun in apposition.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico. Tropical
South America: Rio Negro basin in Brazil.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 2.8 cm SL macho / no sexado; (Ref. 102655)
Descripción breve
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 15 - 16; Radios blandos dorsales (total) : 7 - 9; Espinas anales: 11 - 12; Radios blandos anales: 5 - 6. Polycentrus jundia can be distinguished from P. schomburgkii by the following characters: diagonal upper postorbital band being shorter than orbital diameter (vs. longer); median postorbital horizontal band present (vs. absent); subocular band being shorter than orbital diameter (vs. length of subocular band equal to or greater than orbital diameter; snout blunt (vs. protruding); mouth isognathous (vs. prognathous); serrations absent on lower edge of lacrimal or two tiny serrations at the posterior
end (vs. 8-14 conspicuous serrations distributed throughout the lower edge); posterior edge of vertical arm of preopercle fully serrated (vs. smooth edge); five pungent opercular spines, the three dorsalmost largest (vs. one or two short spines); subopercle widely serrated along most of the edge (vs. no serrations); cleithrum with serrations on posterior dorsal margin (vs. no serrations); interopercle with widely serrated edge (vs. clusters of three to five serrations along the edge of varying position between individuals); fourth pectoral-fin ray reaching vertical through anal-fin origin (vs. reaching vertical from spine III or IV of anal fin); 19-20 scales on dorsal-fin base (vs. 26-31); 12-14 scales on anal-fin base (vs. 16-20); 19-21 predorsal scales (vs. 28-30); and median opercular blotch absent (vs. present) (Ref. 102655).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Coutinho, D.P. and W.B. Wosiacki, 2014. A new species of leaffish Polycentrus Müller & Troschel, 1849 (Percomorpha: Polycentridae) from the rio Negro, Brazil. Neotrop. Ichthyol. 12(4):747-753. (Ref. 102655)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia
82804): PD
50 = 0.7812 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nivel trófico (Referencia
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Vulnerabilidad pesquera (Ref.
59153): Low vulnerability (10 of 100).
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