1. ANIMALIA
Standar Kompetensi
Siswa mampu m emahami prinsip-prinsip pengelompokkan
makhluk hidup.
Kompetensi Dasar
2.6 Mendeskripsikan ciri-ciri filum dalam dunia Hewan
dan peranannya bagi kehidupan
Indikator
 Mengenal ciri-ciri umum animalia.
 Mengidentifikasi karakteristik berbagai filum anggota kingdom
animalia.
 Menyajikan data (gambar, foto, deskripsi) berbagai ivertebrata
yang hidup di lingkungan sekitarnya berdasarkan pengamatan.
1

2. Phylum MOLLUSCA
 Class Polyplacophora - Chiton

3. Phylum Mollusca
 Class Scaphopoda – Tusk Shells

4. Phylum Mollusca
 Class - Gastropoda

5. Phylum Mollusca
 Class Gastropoda - Nudibranch

6. Phylum Mollusca
 Class – Gastropoda - Nudibranchs

7. Phylum Mollusca
 Class – Sea Hare

8. Class Gastropoda
 whelks

9. Class - Gastropoda
 Conch

10. Class Gastropoda
 Limpets and Periwinkles

11. Class - Gastropoda
 Abalone

12. Class - Gastropoda
 Land Snail

13. Class Bivalvia
 Clams, Mussels,Scallops

14. Class - Cephalopoda
 Squid
 Octopus

15. Class Cephalopoda
 Octopus

16. Class Cephalopoda
 Nautilus

17. Characteristics of Molluscans
 Size – Millimeter to 60 Feet (18M)
 Major Food source
 Lifestyle
Simple - Limpets
Complex – Squid and Octopi

18. Molluscan Body Plan
 Visceral Mass
 Foot
 Adductor Muscles
 Siphons
 Gills

19. Circulatory System
 Open Circulatory System
Means that not all the blood is
contained in vessels but rather
vessels AND open chambers called
sinuses
Sinuses take place of the Capillaries
3 chambered heart

20. Body Systems
 Respiration – this is accomplished thru
the circulation of oxygen-rich water by
the MANTLE
 Excretion – this is accomplished by
Kidneys that double as a passageway
for eggs or sperm
 Nervous System – varies with species.
Limpets and Bivalves are simple,
Cephalopods are well developed.

21. Comparison of Body Plans

22. Specialized Structures
 Radula – Horny-toothed structure found
within the pharynx
Used for “Rasping” or “Scraping” plant or
animal tissue
Bivalves are filter feeders and have lost
this structure
Cephalopods, in addition, have a “Beak”
which work together to kill prey

23. Specialized Structures
 Operculum – A protective plate that
covered the opening to the shell of
some gastropods
 Siphon – A tube that allows for water to
enter/leave the body of a Mollusc.
Bivalves and Cephalopods
 Siphuncle – a cord of tissue that
connects all the chambers of the
Nautilus and used for boyancy

24. Specialized Sturctures
 Nacre – secretion around sand particles
by oysters resulting in a pearl.
 Hectocotylus – a special structure on
one of the arms of an Octopus (male)
that allows it to deposit sperm packets
into the females mantle cavity

25. Hectocotylus

26. Specialized Structures
 Shells – Not all mollusc’s produce them
Make of calcium carbonate which is
obtained from water or soil.
They can grow through the lifetime of
the animal

27. Reproduction
 Varies tremendously from external
fertilization to internal, dioecious and
hermaphrodidic
Changing Sex – some such as oysters
change back and forth from male to
female releasing sperm and eggs
accordingly.
Spermatophores – packets of sperm