Class Cephalaspidomorphi of Group Agnatha Flashcards
What class has Lampreys?
Cephalaspidomorphi
What organism is in the class Cephalaspidomorphi?
Lampreys
Cephalaspidomorphi is in the Subphylum?
Vertebrata
What classes has slender, eel-like, rounded with naked skin
Myxini and Cephalaspidomorphi
What are the appendages and fins like?
-no paired appendages
-one or two dorsal fins
What is the skeleton like?
Fibrous and cartilaginous skeleton
What is the notochord like?
Notochord persistent
What is the mouth like?
-oral discs and tongue
-keratinized teeth
What is the nasal sac like?
Nasal sac not connected to Pharynx
What is the digestive system like?
-digestive system without distinct stomach
-intestine with spiral fold
What are the eyes like?
eyes well developed in adults
What is the fertilization like?
External fertilization with long larval stage