Sympterygia acuta

Garman, 1877

Bignose fanskate
Classification: Elasmobranchii Rajiformes Arhynchobatidae

Reference of the original description
Garman, S. (1877)
On the pelvis and external sexual organs of selachians, with special reference to the new genera Potamotrygon and Disceus. Proceedings of the Boston Society of Natural History, 19, 197–215

Synonyms / new combinations and misspellings
Raja echinorhyncha

Sympterygia acuta
Holotype: MCZ: 632-S
Raja echinorhyncha
Lectotype: MNRJ: 583A Paralectotype: MNRJ: 583

Description :

Citation: Sympterygia acuta Garman, 1877: In: Database of modern sharks, rays and chimaeras,, World Wide Web electronic publication, Version 08/2022

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Sympterygia acuta Garman, 1877, male, © Santiago A. Barbini, Laboratorio de Ictiología Instituto de Investigaciones Marinas y Costeras, Argentinia
Common names
spa Raya marrón oscuro, eng Bignose fanskate, eng Ray, por Arraia-emplastro, por Raia, por Raia-emplasto, por Raia-emplastro, por Raia-santa

Southwest Atlantic: Rio de Janeiro, Brazil to Rio de la Plata, Argentina. Source:

Human uses

Oviparous, paired eggs are laid. Embryos feed solely on yolk [733].
Diet: Sympterygia acuta fed on a broad spectrum of prey, but teleosts were more important (47.97% index of relative importance, %IRI), followed by decapods (39.84%IRI), cumaceans (8.31%IRI) and isopods (1.89%IRI), database: 417 speciemens (85 immature females, (253–512 mm TL), 57 mature females (435–620 mm TL), 80 immature males (260–516 mm TL), 79 mature males (448–570 mm TL)), 301 speciemens (72.18%) containing food in their stomachs. [22774]

Size / Weight / Age
150 cm TL (male/unsexed; [19579])

demersal; marine; depth range 10 - 188 m [19579]

shark-references Species-ID=7047;

Parasites (arranged by Jürgen Pollerspöck)
  • Empruthotrema aoneken Irigoitia, Braicovich, Rossin, Canel, Levy, Farber & Timi, 2019 [27765]

  • Brianella corniger Wilson, 1915 [24671]
  • Kroeyerina sudamericana Irigoitia, Cantatore, Incorvaia & Timi, 2016 [24671]