lecture 9

Question 1

Division: Teleostei, Subdivision: Euteleostei, Clade: Neoteleostei

Answer 1

• retractor dorsalis (controls pharyngeal jaw)

Question 2

Division: Teleostei, Subdivision: Euteleostei, superorder: Protacanthopterygii

Answer 2

• salmpniformes (salmon), osmeriforms (smelt), esociformes (pike)

Question 3

Division: Teleostei, Subdivision: Euteleostei, superorder: Paracanthopterygii

Answer 3

• distinct jaw muscles
  -distinct caudal vertebrae
  -midbody to head region pelvic fins
  -Ex: atlantic cod, angler fish

Question 4

Division: Teleostei, Subdivision: Euteleostei, superorder: acanthopterygii

Answer 4

-spiney-rayed fish, with reinforced bone rays
-most modern fishes
dominate shallow, productive habitats
- Orders:
i) Mugiliformes: smellts
ii)Antheriniformes:silver sides
iii) Beloniformes: slying fish
iv) Cyprinodontiformes: guppy

Question 5

Division: Teleostei, Subdivision: Euteleostei, superorder: acanthopterygii, Series: Percomorpha

Answer 5

• highly diversed
  -mainly in corals reefs
• ex: gobies, ciclids, yellow perch