Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) >
Myliobatiformes (Stingrays) >
Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335); siponinmorok: Name 'siponinmorok' from the Akawaio (Indigenous community historically occupying coastal Guyana) phrase 'si ponin moro', meaning the 'fish that stings', with 'si' pronounced like 'chee' and the 'moro' like 'moor-okh' for English and Creole speakers.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Guyana.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.3 cm WD male/unsexed; (Ref. 138783)
Short description
Identification keys | Morphology | Morphometrics
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hemraj-Naraine, D., J.P. Fontenelle, A. Acosta-Santos, N.R. Lovejoy, E. Liverpool and M.A. Kolmann, 2026. A new species of freshwater stingray (Myliobatiformes: Potamotrygoninae) from northern South America. Neotrop. Ichthyol. 24(1):1-33. (Ref. 138783)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Fishing Vulnerability (Ref. 59153) |
Moderate to high vulnerability (52 of 100). 🛈 |