Phylum Mollusca_Class Cephalopoda

7/24/2019 Phylum Mollusca_Class Cephalopoda

1/16

Class Cephalopoda

the squids, octopus, nautilus,and cuttlefsh

Richard E. Young, Michael Vecchione and Katharina M.

Mangold


2/16

Phylum Mollusca, ClassCephalopods

Cephalopods (Class Cepahlopoda)adalah flum moluska yang meliputicumi-cumi, nautilus, sotong dan

octopus Kebanyakan cephalopoda adalah hewan

yang paling berkembang dari moluska,

dan merupakan perenang yang cepat Cephalopods have a reduction in or

loss altogether o the shell


3/16


Cephalopods (which means !head-ooted")have heads surrounded by a oot modifedinto arms and tentacles, usually e#uipped

with suckers that are used to capture prey


4/16

Phylum Mollusca, ClassCephalopoda

Moluska terbesar

Memiliki radula

Cephalopods memiliki mata yangbesar dan penglihatan yang ta$am


5/16


Cephalopods pump water through thesiphon, orunnel into their mantle cavity

%y orcing water out o the mantlecavity through the siphon, cephalopodsswim by means o !$et propulsion"

%y changing the direction o thesiphon, cephalopods can movebackward or orward, or can remainmotionless in one place


6/16

&et Propulsion

Water entersmantlecavity

Water exitsrom unnelor siphon

Direction o water out

o siphon

Direction o cephalopodmotion


7/16

'ctopus 'rder 'ctopoda

'ne o the most iconic cephalopods isthe octopus

'ktopus memiliki lengan

%ergerak dengan berenang dan merayap *idak memiliki cangkang dalam *ubuhnya membulat dan pendek Common bottom dwellers, they are

e+cient hunters %ite their prey (mostly shellfsh)

with a pair o beak-like $aws Ink sacemits a dark cloud o uid

to deter predators


8/16

#uids 'rder *euthoidea

#uids are better adapted

or swimming thanoctopuses

Memiliki dua sirip segitiga

yang termodifkasi untukberenang

*ubuhnya pan$ang danmeruncing

Memiliki lengan dan .tenrakel pan$ang ave allwith suckers

which circle themouth

http//cas0bellarmine0edu/tiet$en/images/1ma

Long retracta!le


9/16

%ergerak dengan berenang


10/16

#uids 'rder *euthoidea

uckers only at broadened tips ontenacle*he shell is reduced to a sti3pen

embedded in the upper surace o


11/16

Cuttlefsh 'rder epiida

otong adalah invertebrata terpintar

otong memiliki cangkang yangdisebut dengan cuttlebone yangmembantu dalam mengapung

%eruang, dan terisi oleh udara

Called !chameleons o

the sea" or theirastonishing ability to

change skin

color at will


12/16


13/16

Chromatophores

Cepalopoda mengontrol corak danwarna kulit dengan chromatophores

Chromatophores adalah sel-sel yangmengandung pigmen dan cahayareekti untuk berkamuase

1nside the chromatophore, pigment

granules are enclosed in an elastic sac*o change color, the sac is distorted by way

o muscular contraction


14/16

4autilus 'rder 4autilida

4autilus are called !living ossils"5only 6 species remain o an e7tinctsuperamily

urvived relatively unchanged ormillions o years8as-flled chambers aid in buoyancyPaper

nautiluses areactually pelagicoctopus5 namedor the paper-thin eggcase in


15/16

9ou will neverbe as cool as acephalopod

Mimic octopushttp//www0youtube0com/watch:v;-ul6?@A

Vampire squid from hellhttp://www.youtube.com/watch?v=S3!"##S$p%

www0islandream0com/sangalakigalleryB0htm http//www0itsnature0org/sea/other/colossal-s#uid/www0ickr0com/photos/ma7cdc/26>6.@B


16/16

Dor as smart:::

'ctopuses and cuttlefshes have aremarkable capacity or learning

8iant nerve fbers rapidly conduct impulses

allowing cephalopods to capture prey orescape at amaEing speeds

Most cephalopods display color changescorrelated with particular behaviors and

moods

'ctopus are known to use tools, and predictForld Cup championsG

Documents

Phylum Mollusca_Class Cephalopoda