c. Internal Anatomy 13

6. Stomach 13

7. Phacelli 14

8. Peripheral Part of the Gastro-Vascular System 14

(a) Stomach Pockets (Valves and Mesogonial Pockets) 14

(b) Marginal Pockets 17

(c) Canals of the Sensory Clubs and Tentacles 17

9. Reproductive Organs 19

10. Floating and Wandering Cells 20

B. TRIPEDALIA CYSTOPHORA 22

a. Habitat 22

b. External Anatomy 23