MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
The southernmost range limit for the hidden angelshark Squatina occulta
CHIARAMONTE, GUSTAVO E; DÍAZ DE ASTARLOA, J. M.; ESTALLES, M. L.; LUZZATTO, D. C.; FARIA, V.
Marine Biodiversity Records
Año: 2016 vol. 9 p. 1 - 1
Background: Angelsharks (Genus Squatina) are distributed in the southern Southwest Atlantic Ocean betweensoutheastern Brazil and central Patagonia. The endangered hidden angelshark Squatina occulta is reported in theliterature as ranging from Espírito Santo, Brazil to Southern Uruguay. Its presence in Argentine waters has beensuspected but not verified so far. This study describes and analyzes a specimen of S. occulta found in PuertoQuequén 38° 40′S - 58° 50′W, Buenos Aires Province, Argentina.Results: An immature male of 578 mm total length and 1,450 g was collected from commercial landings of thebottom trawl fishery of Puerto Quequén. The specimen exhibited the coloration pattern, dermal denticledistribution, and tooth formula characteristic of S. occulta.Conclusions: Squatina guggenheim and S. argentina are already known to occur off Puerto Quequén. The presentfinding confirms the presence of a third species of angelshark in Argentina and constitutes the southernmostrecord of S. occulta.