Squaliformes

>> Classification > Squaliformes > Squale nain

Squaliolus laticaudus - Spined pygmy shark - Zwerghai - Tollo pigmeo espinudo

Requin découvert par Smith & Radcliffe en 1912.


Morphologie

 


Museau arrondi et conique ;


Tête conique déprimée vers l'arrière ;

Seul requin à avoir une épine à la première dorsale et pas à la seconde.


 
   

 

Caractéristiques
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  Taille Jusqu'à 20 cm.
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  Masse  
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  Nocturne/Diurne  
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  Alimentation Petits poissons osseux benthiques, calmars.
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  Habitat Il évolue sur le talus continental des eaux tempérées entre 200 et 500 m.
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  Distribution
Eaux profondes du Pacifique et de l'Atlantique.       
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Maturité sexuelle

Atteinte à 15 cm pour les mâles et à 20 cm pour les femelles.
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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 Squaliformes
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  Famille Dalatiidae
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  Genre Squaliolus
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  Espèce Squaliolus laticaudus
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Photos
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Vidéos
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