Pristiophoriformes

>> Classification > Pristiophoriformes > Requin-scie d'Australie


Pristiophorus delicatus - Tropical sawshark

Requin découvert par Last & White en 2008.


Morphologie

 



Museau long orné de chaque côté d'une vingtaine de dents rostrales qui leur donnent l'aspect d'une lame de scie ;

 

Fusiforme, la tête est prolongée d'un rostre spectaculaire armé de denticules transversaux acérés et d'une paire de longs barbillons souples ;

Dents latérales ainsi que par deux longs barbillons prénarinaires ;
Les deux nageoires dorsales ne possèdent pas d'épine. La nageoire anales est absente.
   

 

Caractéristiques
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  Taille Jusqu'à 62 cm pour les mâles et 85 cm pour les femelles.
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  Masse  
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  Nocturne/Diurne Nocturne.
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  Alimentation Poissons et invertébrés.
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  Habitat Il évolue entre 250 et 405 m.
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  Distribution
Australie.
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Maturité sexuelle

 
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Mode de reproduction

Ovovivipare.
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  Période de reproduction  
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  Espérance de vie  
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  IUCN Liste rouge
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Distribution
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Reproduction
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Dangers
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  Dangerosité

Aucune

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  Degré
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  Exploitation humaine Aucune.
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Particularités
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Classification
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  Règne Animalia
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  Embranchement Chordata
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  Classe Chondrochtyes
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  Sous-classe Elasmobranchii
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  Super-ordre Euselachii
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  Ordre Pristiophoriformes
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  Famille Pristiophoridae
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  Genre Pristiophorus
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  Espèce Pristiophorus delicatus
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Photos
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Vidéos
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