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Class Cephalopoda
the squids, octopus, nautilus,and cuttlefsh
Richard E. Young, Michael Vecchione and Katharina M.
Mangold
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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
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Phylum Mollusca, ClassCephalopods
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
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Phylum Mollusca, ClassCephalopoda
Moluska terbesar
Memiliki radula
Cephalopods memiliki mata yangbesar dan penglihatan yang ta$am
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Phylum Mollusca, ClassCephalopods
Cephalopods pump water through thesiphon, orunnel into their mantle cavity
%y orcing water out o the mantlecavity through the siphon, cephalopodsswim by means o !$et propulsion"
%y changing the direction o thesiphon, cephalopods can movebackward or orward, or can remainmotionless in one place
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&et Propulsion
Water entersmantlecavity
Water exitsrom unnelor siphon
Direction o water out
o siphon
Direction o cephalopodmotion
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'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 $aws Ink sacemits a dark cloud o uid
to deter predators
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#uids 'rder *euthoidea
#uids are better adapted
or swimming thanoctopuses
Memiliki dua sirip segitiga
yang termodifkasi untukberenang
*ubuhnya pan$ang danmeruncing
Memiliki lengan dan .tenrakel pan$ang ave allwith suckers
which circle themouth
http//cas0bellarmine0edu/tiet$en/images/1ma
Long retracta!le
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%ergerak dengan berenang
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#uids 'rder *euthoidea
uckers only at broadened tips ontenacle*he shell is reduced to a sti3pen
embedded in the upper surace o
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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
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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
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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
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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
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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