Elasmobranchii (haaien en roggen) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Leucoraja: Greek, leykos = white + Latin, raja = a fish, Raja sp. (Ref. 45335); longirostris: Name from Latin 'longus' = long and 'rostrum' = stiff snout; referring to the distinct long and pointed snout.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathydemersaal; diepte 750 - 1050 m (Ref. 131089). Tropical
Verspreiding
Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri
Western Indian Ocean: southern end of the Madagascar Ridge at Walters Shoals.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 71.1 cm TL mannelijk / geslacht onbekend; (Ref. 131089); 70.0 cm TL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
The species is distinguished from all its congeners by its remarkably long and acutely angled
snout, with horizontal preorbital length 17.2-–22.6% TL (vs. 8.5-11.9% TL) and 4.2-6.1 (vs. 1.7-3.5) times orbit length, snout angle 65-85? (vs. 90-150?); with plain dorsal coloration; with an external clasper component dike; with four dorsal terminal (dt) cartilages (Ref. 131089).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Weigmann, S., M.F.W. Stehmann, B. Séret and H. Ishihara, 2024. Description of a remarkable new skate species of Leucoraja Malm, 1877 (Rajiformes, Rajidae) from the Southwestern Indian Ocean: introducing 3D modeling as an innovative tool for the visualization of clasper characters. Biology 13:1-46. (Ref. 131089)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2024-1)
Gevaar voor de mens
Harmless
Gebruik door de mens
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00168 - 0.00685), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.6 ±0.2 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (48 of 100).