FILUM MOLUSKA2

PHYLUM MOLLUSCA
Is a group of invertebrates animals, which
represented more than 150,000 lives & the
thousands who have become fossil
 Mollusca: has spread to every place where
water and life has been lived up to the land, the
type of the most successful phylum of living
over time other geological & trusted as to
determine the index fossil
 Appear since the era of Kambrium until now
Currently there are estimated 75-thousand
species, and 35 thousand species in the form of
fossil

CATHALOCITY PHYLUM
MOLLUSCA
Mempunyai bagian tubuh yang lunak dengan
dilapisi oleh bagian kulit yang keras
 Merupakan
golongan hewan yang tidak
bertulang belakang
 Mempunyai daya adaptasi yang tinggi
 Hidup pada air asin, payau hingga air tawar
 Muncul dari Zaman Kambrium hingga sekarang
 Tubuh Mollusca terdiri dari kaki, massa viseral,
dan mantel
 Ukuran dan bentuk tubuh Mollusca sangat
bervariasi

PHYLUM MOLLUSCA
CLASSIFICATION
Amphineura Class
 Scaphopoda Class
 Pelecypoda Class
 Gastropoda Class
 Chepalopoda Class

Basic classification on the feet and
parts of the software
 Amphineura class: there is a rare fossil




(age: Kambrium-now)
Scaphopoda class: rare fossil in the rock that is older
than Mesozoik
Pelecypoda class: entry in many genus & species, living
from Ordovisium down - now
Gastropoda class: abundant fossil knowledgeable and
recorded from Kambrium - now
Cephalopoda class: Paleozoik prevalent in the rock, is
very abundant in the Mesozoik
MOLLUSCA WHAT ?
animals do not have the software and vertebra.
tripoblastik this animal body, bilateral
symmetry, generally have a coat that can
produce material cangkok form carbonic calcium
 Cangkok tersebut berfungsi sebagai rumah
(rangka luar) yang terbuat dari zat kapur
misalnya kerang, tiram, siput sawah dan bekicot.
Cangkok functions as a house (outside frame)
made of calcium such as shellfish, oyster, snail
and rice bekicot.

(a) Shell, (b) Slug, (c) Squid
cangkok shell consists of two cleavage
 cangkok siput berbentuk seperti kerucut yang
melingkar cangkok snail shaped like a circular
cone
 Cumi-cumi dan sotong tidak punya cangkok
Squid and cuttlefish do not have cangkok

CARACTERISTIC OF MOLUSCA:






Mollusca have the perfect tool digestion from the mouth that have a radula
(tongue seam) to the anus in the mantle cavity.
Di samping itu juga terdapat kelenjar pencernaan yang sudah berkembang
baik. In addition, a digestive gland that has developed well. Peredaran darah
terbuka ini terjadi pada semua kelas Mollusca kecuali kelas Cephalopoda .
Circulatory open this happens in all classes except Mollusca class
Cephalopoda.
Pernafasan dilakukan dengan menggunakan insang atau “paru-paru”, mantel
atau oleh bagian epidermis. Respiratory conducted using gill or "lung", a
coat or by the epidermis.
Alat ekskresi berupa ginjal. Tools ekskresi a kidney.
Sistem saraf terdiri atas tiga pasang ganglion Nervous system consists of
three pairs of ganglion
Alat reproduksi umumnya terpisah atau bersatu dan pembuahan internal
atau eksternal. Tools reproduction usually separate or together, and
internal or external fertilization.
MOLLUSCA CLASS DIVISION

Based on the Symmetry of body, feet and feature
cangkoknya, Mollusca is divided into five classes,
namely:
 Gastropoda, Gastropoda,
 Cephalopoda, Cephalopoda,
 Pelecypoda, Pelecypoda,
 Amphineura Amphineura
 Scaphopoda Scaphopoda
AMPHINEURA CLASS
Mollusca class Amphineura animal lives in the
sea near the coast or on the beach. Body bilateral
symmetry, with the foot in the belly (ventral) aft.
Coat room with dorsal surface, covered by 8
board berkapur, while the surface contains a lot
of lateral gill
 This animal is hermafrodit (two pairs), fertilisasi
external (meeting teur and sperm cells occur
outside the body). For example Cryptochiton or
kiton sp. Hewan ini juga mempunyai fase larva
trokoper . This animal also has a phase flyblow
trokoper.

KITON
SCAPHOPODA CLASS
Dentalium vulgare is one of the example class
Scaphopoda. If you walk on the beach, be careful
with the body shell of this type of Scaphopoda.
Because these animals are usually grown in a
stone or other objects that form a sea-like canine
 Dentalium vulgare life at sea in the sand or mud.
This animal also has a cylindrical cangkok that
both ends open. Body length about 2.5 to 5 cm.
Near the mouth there is tentakel kontraktif
bersilia, the tentacle. Its function is to capture
mikroflora and mikrofauna. Water circulation for
respiratory movement is driven by the foot and
silia, while gas exchange occurs in the mantle.
Animals have sex separately

(A) DENTALIUM VULGARE, (B) STRUKTUR TUBUH
DENTALIUM SP.