filum molusca2009-08

PHLUM MOLUSKA
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
 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
CATHALOCITY PHYLUM
MOLLUSCA
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.