Cyclostomi
Animal
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Cyclostomi, often referred to as Cyclostomata, is a group of vertebrates that comprises the living jawless fishes: the lampreys and hagfishes. Wikipedia
Scientific name: Cyclostomata
Phylum: Chordata
Domain: Eukaryota
Infraphylum: Agnatha
Kingdom: Animalia
Superclass: Cyclostomi; Duméril, 1806