Psammobatis normani (lat.) Is a type of cartilaginous fish of the genus Arhynchobatidae of the sloping order family. They live in the subtropical waters of the southwestern part of the Atlantic Ocean and in the southeastern part of the Pacific Ocean . They are found at a depth of up to 358 m. Their large, flattened pectoral fins form a rounded disc with a triangular snout. The maximum recorded length is 53.7 cm. Oviparous view. Not subject to target fishing [1] [2] [3] .
Psammobatis normani |
Scientific classification |
---|
No rank : | Bilateral symmetric |
Family: | One-rayed stingrays |
|
International Scientific Name |
---|
Psammobatis normani - McEachran , 1983 |
Area |
---|
|
Security status |
---|
Not enough data IUCN Data Deficient : 44640 |
|
Content
TaxonomyFor the first time a new species was scientifically described in 1983 [4] . The holotype is a male, 36.3 cm long, caught in the waters of Argentina ( ) at a depth of 81 m. The species is named after R. Norman ( 1898-1944) from the British Museum , which for the first time described the slope Psammobatis scobina in 1937, with which Psammobatis normani is often confused (differing in the morphology of pterygopodia) [2] .
AreaThese stingrays live in the waters of Argentina and Chile . Off the coast of Argentina, they are found on the continental shelf at a depth of 70-145 m, and off the coast of Chile on the continental slope at a depth of 358 m [2] .
DescriptionWide and flat pectoral fins of these rays form a rhombic disk with a wide triangular snout and rounded edges. On the ventral side of the disc are 5 gill slits, nostrils and mouth. The tail is longer than the disc. On the tail there are lateral folds. These rays have 2 reduced dorsal fins and a reduced tail fin [1] . The maximum recorded length is 53.7 cm [3] .
BiologyThese rays lay eggs enclosed in a horn capsule with βhornsβ in the corners [1] .
Human interactionThese stingrays are not targeted. Caught by-catch during the hake and black congrio fishery. Data for assessing the conservation status of the species by the International Union for Conservation of Nature is insufficient [2] .
Notes- 2 1 2 3 Froese, Rainer, and Daniel Pauly, eds. Family Anacanthobatidae - Smooth skates ( Neopr .) . FishBase (2014).
- β 1 2 3 4 Psammobatis normani (English) . The IUCN Red List of Threatened Species .
- β 1 2 Psammobatis normani (English) in FishBase database.
- E McEachran J. Walter Herwig β to South America. Lxi Revision of the South American skate genus Psammobatis GΓΌnther, 1870 (Elasmobranchii: Rajiformes, Rajidae ) // Archiv fΓΌr Fischereiwissenschaft. - 1983. - Vol. 34, No. (1) . - P. 23-80.
Links