Biology
Petromyzon (Lamprey): General Characters
Petromyzon (Lamprey): General Characters Introduction: Lampreys are Anadromous or freshwater, Eel-shaped jawless fishes. They can be readily recognized by the large, rounded sucker which surrounds their mouth and by the single nostril on the top of their head. Systemic position of Petromyzon: Phylum: Chordata Sub Phylum: Vertebrata Group: Agnatha Class: Read more…