1. Class Osteichthyes Bone endoskeleton Thin flexible scales (______ or ______) Bony ________ pumps water across gills Most have swim bladder ______ (symmetrical) tail Protrusible jaw with terminal mouth Cycloid Ctenoid Operculum Homocercal

2. Class Osteichthyes: Bony Fishes

3. Phylum Chordata Subphylum Vertebrata Class Osteichthyes Ctenoid Scale _______ Scale Ctenoid What type of scale is this?

4. Phylum Chordata Subphylum Vertebrata Class Osteichthyes Cycloid Scale _______ Scale Cycloid What type of scale is this?

5. Phylum Chordata Subphylum Vertebrata Class Chondrichthyes Placoid Scales What type are scales are these?

6. 1. Operculum2. Dorsal fins3. Caudal fin 4. Lateral line5. Pectoral fin 6. Pelvic fin 7. Anal fin 1 2 2 3 4 5 6 7

7. First dorsal fin Second dorsal finCaudal fin Anal fin Pelvic fin Pectoral fin Operculum Eye Nostril Lateral line

8. Gills Swim bladder Gonad Heart Stomach Intestine A. B. C. D. E. F. Liver

9. Heart Pyloric caeca Stomach Gonad Swim bladder Intestine Gills A. B.C. D. E.F. G.

10. Gills Heart Liver Stomach Intestine Swim bladder Gills Liver Swim bladder Gonad Stomach 1.2. 3. 4. 5. 6. 7. 8.9. 10.

11. Gills Ventricle (Heart) Liver Pyloric caeca Stomach Intestine Spleen Gills Atrium (Heart) Ventricle (Heart) Liver Gall Bladder Intestine Urinary bladder Gonad Intestine Perch Anatomy

12. Parts of a Typical Epipelagic Fish

13. 1. Gills2. Kidney3. Swim bladder4. Gonad5. Urinary bladder 6. Heart7. Liver 8. Stomach9. Pyloric ceca 10. Pancreas 11. Intestine 1 2 3 3 4 5 6 7 8 9 10 11 8

14. Pharynx Behind mouth Houses gills Gill arches may be equipped with inwardly directing projections called gill rakers that aid in filtering food from the water

15. Esophagus, Stomach, and Intestine The esophagus is short and contains taste buds The stomach functions in storage Pyloric caeca secrete digestive enzymes. Carnivores have short intestines, herbivores have long intestines. The intestine functions in the digestion of nutrients

16. First dorsal fin Second dorsal finCaudal fin Anal fin Pelvic fin Pectoral fin Operculum Eye Nostril Lateral line

17. Gills Swim bladder Gonad Heart Liver Intestine Stomach

18. Heart Pyloric caeca Stomach Gonad Swim bladder Intestine Gills A.B.C. D. E.F. G.

19. A B

21. A B C C D E F G H I K L J