Squaliformes

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Centroscyllium kamoharai - Bareskin dogfish

Requin découvert par Abe, 1966.


Morphologie

 


Corps cylindrique ;


Tête conique déprimée vers l'arrière ;

 5 paires de fentes branchiales ;

 

 


Les deux nageoires dorsales sont précédées par deux grosses épines blanches rainurées, avec la seconde beaucoup plus longue que la première.
La première nageoire dorsale a un sommet arrondi et une marge arrière presque droite, qui part de l'arrière des nageoires pectorales. La deuxième nageoire dorsale est plutôt anguleuse et a environ le double de la superficie de la première, avec son origine située au milieu de la base de la nageoire pelvienne.


Organes lumineux disséminés sur la peau.

 

Caractéristiques
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  Taille Jusqu'à 45 cm.
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  Masse  
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  Nocturne/Diurne  
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  Alimentation Poissons osseux, des custacés et des céphalopodes.
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  Habitat  
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  Distribution
Eaux profondes du Japon.
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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 DD
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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 Squaliformes
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  Famille Etmopteridae
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  Genre Centroscyllium
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  Espèce Centroscyllium kamoharai
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Photos
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Vidéos
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