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Elasmobranquios (tiburones y rayas) (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Urogymninae
Etymology: Brevitrygon:Derived from brevis (Latin), meaning short and trygṓn (Greek τρυγών),
meaning stingray, in allusion to the short, semi-rigid tails of these stingrays; heterura:Name from Greek 'héteros', meaning different and 'ourá' for tail, referring to the posterior half of tail which is considerably thicker in the middle as compared to B. walga; an adjective (Ref. 130662).
Environment: milieu / climate zone / depth range / distribution range Ecología
marino demersal; rango de profundidad 25 - 50 m (Ref. 114953). Tropical
Indo-West Pacific (Indo-Malay Archipelago): Indonesia to Vietnam, including Thailand Malaysia, Singapore, Brunei, and possibly Cambodia.
Tamaño / Peso / Age
Maturity: Lm? range ? - ? cm Max length : 20.6 cm WD macho / no sexado; (Ref. 114953); 24.3 cm WD (female)
Short description Claves de identificación | Morfología | Morfometría
This species is distinguished by the following characters: a very small whipray, oval disc, pointed snout, adults with broad almost rectangular denticle band, no enlarged mid-shoulder denticles, tail short (with bulbous tip in adult females) with median row of enlarged spearshaped thorns, skin folds on tail absent, and dorsal surface plain coloured; disc slightly longer than wide, length ca. 1–1.1 times DW, pectoral-fin apex is broadly rounded; snout rather long, broad, with apical lobe narrowly rounded, anterior margins moderately concave; eyes small, protruding slightly, orbit length and spiracle ca. 2.9–3.1 in snout length, the interorbital space rather broad, 1.2–2.1 times orbit length; mouth is moderately arched, 2-3 well-developed oral papillae (well separated),
lower jaw arched with central concavity; nasal curtain is skirtshaped, broad, posterior margin finely fringed; mid-shoulder denticle is weak, the denticle band expanded over abdomen in
adults, converging forward of orbits and tail, and constricted beside spiracles, skin is smooth outside denticle band; thorns in median row on tail 4-6 and enlarged with convex crowns; tail
short to moderately elongate, its length 1–1.7 times DW, depressed, stout at base but filamentous beyond caudal sting in young and adult males while bulbous with short filamentous tip in large females, with 1 or 2 caudal stings (Ref. 114953).
Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Last, P.R., S. Weigmann and G.J.P. Naylor, 2023. The Indo-Pacific stingray genus Brevitrygon (Myliobatiformes: Dasyatidae): clarification of historical names and description of a new species, B. manjajiae sp. nov., from the western Indian Ocean. Diversity 15: 1-75. (Ref. 130662)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Trophic ecology componentes alimenticios Composición de la dieta consumo de alimento Food rations Despredadores
Ecology Ecología
Population dynamics Coeficiente del crecimiento para Max. ages / sizes Length-weight rel. Length-length rel. Length-frequencies Mass conversion Reclutamiento Abundancia
Life cycle Reproducción Madurez Maturity/Gills rel. Fecundidad Puesta Spawning aggregations Huevos Egg development Larva Dinámica larvaria
Physiology Body composition Nutrients Consumo del oxígeno Tipo de natación Velocidad de natación Visual pigments Fish sound Diseases & Parasites Toxicity (LC50s)
Genetics Genética Heterozygosity heritabilidad
Human related Aquaculture systems Perfiles de acuicultura Razas Ciguatera cases Stamps, coins, misc.
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00486 - 0.02155), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).
