Acorn Worms

Tunicate or Sea

Squirts

Tunicate Tadpole Larvae

1.

2.

3.

4.

5.

6.

Kingdom: AnimaliaPhylum: ChordataGroup: AcraniaSubphylum: Urochordata

Tunicate Adult

1.

2.

BranchiostomaAmphioxus

Also: 4. Velum/Mouth, 9.Pharynx, 10. Esophagus, 13. Atrium, and 12. Fin Rays

1.

2.

3.5. 6

.

7.

8. 11. 14.15.

16.

17.

18.

BranchiostomaAmphioxus

1.

2.

3.

4.

5.

6.7

& Slits

Also: Fin Ray

2.

3.

4.

8.

BranchiostomaAmphioxus

Ammocoetes (larvae)

Gill Slits & Bars

Also: 8. Myomeresand 7. Fin Rays

1.

2.

3.

4 & 5

6.

9.

10.

11.

12.

13.

Lamprey

Mouth & Horny Teeth

1 & 2

3.

4.

5. 6.

7.

8.

Sharks

Skates

Rays

Dorsoventrally Flattened

Enlarge Pectoral Fins

Do not bear live birth, lay “Mermaids Purses”

Types of Scales

Placoid

Ctenoid Cycloid

Ganoid

Pyloric Caeca

Maxillary Teeth

Tongue

Eustachian TubesEsophagus

Glottis

Suprascapula

Abdominal Vertebra

Humerus

Calcaneum

Radio-ulna

Humerus

Tibiofibula

Astragalus

Phalanges

Carpals

Metacarpals

Metatarsals

Phalanges

Ischium

Urostyle

Ilium

Pubis

Episternum

Clavicle

Mesosternum

Omosternum

Scapula

Coracoid

Xiphisternum

Optic Lobe

Cerebellum

Medulla Oblongata

4th Ventricle

Diencephalon

Cerebral Hemispheres

Olfactory Lobe

Olfactory Nerve

Gall Bladder