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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Diapominae
Etymology: Rhinopetitia: Greek, rhinos = nose + French, petit = small (Ref. 45335); potamorhachia: From the Greek potamo, meaning river, rhachia, meaning beach, in reference to the fact that most specimens of R. potamorhachia were collected on sandy beaches along the Rio Teles Pires. An adjective.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico. Tropical
South America: Rio Teles Pires, Rio Tapajós basin in Pará, Brazil.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 4.4 cm SL macho / no sexado; (Ref. 111429); 4.5 cm SL (female)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 10; Radios blandos anales: 18 - 20. Rhinopetitia potamorhachia differs from its only congener, R. myersi Géry 1964, by the presence of distinct dark midlateral body stripe (vs. absence) overlaying an inconspicuous, round humeral blotch (vs. absence of humeral blotch); teeth in both premaxillary tooth rows with
seven to nine cusps and seven or eight cusps on the maxillary teeth (vs. outer series of premaxillary teeth with three cusps and inner series of premaxillary teeth with three to five cusps; maxillary teeth with three to five cusps) (Ref. 111429).
Body shape (shape guide): fusiform / normal.
Found along sandy beaches of the Rio Teles Pires in an area significantly affected by the construction of the Teles Pires hydroelectric dam (Ref. 111429).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Netto-Ferreira, A.L., J.L.O. Birindelli, L.M. Sousa and N.A. Menezes, 2014. A new species of Rhinopetitia Géry 1964 (Ostariophysi: Characiformes: Characidae) from the Rio Teles Pires, Rio Tapajós basin, Brazil. J. Fish Biol. 84(5):1539-1550. (Ref. 111429)
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) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01259 (0.00551 - 0.02875), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
2.8 ±0.3 se; based on size and trophs of closest relatives |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |