1. Class Cephalopoda “head footed” Shell in squid and octopus absent or vestigial (serves no obvious purpose) Jet propulsion Ink sac for defense Foot modified into arms and tentacles Marine All predators Roughly 700 living species 1

2. Links for Cephalopoda.. please pay attention most of the test ?s come from the video info http://www.youtube.com/watch?v=QMFqV4SJLWg nautilus http://www.youtube.com/watch?v=QMFqV4SJLWg http://www.youtube.com/watch?v=lwAqhThd_EQ giant octopus http://www.youtube.com/watch?v=lwAqhThd_EQ http://www.youtube.com/watch?v=bBe2KaRuI80 intelligent octopus http://www.youtube.com/watch?v=bBe2KaRuI80 http://www.youtube.com/watch?v=5rqhomPaxhE cephalopod masters of camo http://www.youtube.com/watch?v=5rqhomPaxhE http://www.youtube.com/watch?v=IyeKbRIQTxs&featu re=related invisible octopus..slowed down http://www.youtube.com/watch?v=IyeKbRIQTxs&featu re=related https://www.youtube.com/watch?v=2x- 8v1mxpR0&feature=related meet the cuttlefish https://www.youtube.com/watch?v=2x- 8v1mxpR0&feature=related https://www.youtube.com/watch?v=v8Aw7QroV78 cuttlefish mating rituals https://www.youtube.com/watch?v=v8Aw7QroV78

3. Squid 3 Dorsal Ventral Posterior surface Right Left

4. Squid 4 FinFin ArmArm Funnel (siphon) EyeEye TentacleTentacle CollarCollar

5. Squid 5 Shell (Pen) Ctenidium (gills) FunnelFunnel SystemicheartSystemicheart Branchial heart

6. Squid Male 6 TestisTestis Hectocotylous arm PenisPenis

7. Squid Female 7 Ovary with eggs Nidamental glands Oviducal gland Oviducal opening

8. Squid

9. Octopus Eight arms with suckers Crawl or eject water from siphon Change skin color – chromatophores Most intelligent invertebrate 9

10. WOW, Giant Octopus! 10 http://www.youtube.com/watch?v=l wAqhThd_EQ

11. Intelligent Octopus 11 http://www.youtu be.com/watch?v=b Be2KaRuI80 http://www.youtu be.com/watch?v=b Be2KaRuI80

12. Nautilus Indian & Pacific Ocean @ ~ 1,800 feet Avg. life span = 20 years ( unusual – most cephalopods have short life span) Average size 8-10 inches in diameter Up to 94 tentacles – No suckers Shell with many chambers – Lives in outermost chamber 12

13. Nautilus 13 http://www.youtube.com/watch? v=QMFqV4SJLWg

14. Cuttlefish 14 http://www.youtube.com/watch?v=2x-8v1mxpR0&feature=related http://www.youtube.com/watch?v=v8Aw7QroV78 mating in mozambique http://www.youtube.com/watch?v=v8Aw7QroV78

16. Cephalopod – Master of Disguise 16 http://www.youtube.com/watch?v=5r qhomPaxhE http://www.youtube.com/watch?v=5r qhomPaxhE http://www.youtube.com/watch?v=Iy eKbRIQTxs&feature=related http://www.youtube.com/watch?v=Iy eKbRIQTxs&feature=related

17. Draw & label this..Yes, you need to color it I miss yall!!  Title this PHYLUM MOLLUSCA ORGANIZER *fill in all the missing information! Each class & example set should be a different color! You may outline them instead of color them in. Choose your own 4 colors! PHYLUM _________ Class ______ Examples..LIST ALL GIVEN FOR EACH

18. REVIEW ?s if you have time… these are on test 1. Which of the following is NOT a class of phylum Mollusca? a. Gastropoda b. Cephalopodac. Bivalvia d. Cestopoda e. both c and d 2. Mollusks share all but WHICH of the following common characteristics? a.muscular foot b. mantle c. visceral mass d. radula e. none of these Answers …. D D