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Fish Cyclostomata

Cyclostomata (Jawless fishes)


Cyclostomata (Duméril, 1806), the round mouths or jawless fishes are a small group of fish distinguesed by their lack of jaws. Their mouth is constantly open and contains horny teeth.

There are about 75 described species belonging to this group.

 

Species list:

lampetra fluviatilisLampetra fluviatilis
(River lamprey)

Scientific name: Lampetra fluviatilis (Linnaeus, 1758)
Popular names: River lamprey, European river lamprey
Danish name: Flodlampret

Family: Petromyzontidae (Lampreys)

Depth: 0 - ? meter (demersal)
Max. size: 50 cm / 150 g

Capture sites: The North Sea

 

Description



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myxine glutinosaMyxine glutinosa (Hagfish)

Scientific name: Myxine glutinosa (Linnaeus, 1758)
Popular names: Hagfish
Danish name: Slimål

Family: Myxinidae (hagfishes)

Distribution:  North Atlantic Ocean
Depth: 30 - 1200 (demersal)
Max. size: ~ 80 cm

 

Description


 

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Myxine iosMyxine ios
(White-headed hagfish)

Scientific name: Myxine ios (Fernholm, 1981)
Popular names: White-headed hagfish
Danish name: Hvid hovedet slimål

Family: Myxinidae (hagfishes)

Distribution:  North Atlantic Ocean
Depth: 600 - 1600 (bathydemersal)
Max. size: ~ 57 cm

 

Description


 

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petromyzon marinusPetromyzon marinus
(Sea lamprey)

Scientific name: Petromyzon marinus (Linnaeus, 1758)
Popular names: Sea lamprey
Danish name: Havlampret

Family: Petromyzontidae (lampreys)

Distribution: North Atlantic Ocean and Western Mediterranean Sea
Depth: 1 - 2200 meter (demersal)
Max. size: ~ 120 cm

 

Description


 

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