elephant tusk shells
butterflies of the sea
lerrfons of the sea
cucumbers of the sea
Crab
Aretticola
Milipede
Centipede
Caphalopods
Scaphopods
Bivalva
Gastropods
Gastropoda
Scaphopoda
Bivalva
Cephalopoda
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
devilfish
cuttlefish
black mussel
sea hare
Pholas
Teredo
Solen
Dentalium
thoracic appendages
foot
head appendages
none of these
Echinodenns
Arthropods
Molluscs
Annelida
scallop
sea mussel
razor shell
any of these
Unio
Mytilus
Teredo
Tridacna
Gastropoda
Caphalopoda
Bivalvia
Scaphopoda
Pila
Starfish
Housefly
Earthworm
cuttlefish
squid
flying squid
devil fish
Pila
Aplysia
Helix
Aphrodite
Nautilus
Pila
Argpnata
Unio
Sepia
Octopus
Aplysia
Doris
Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda
Annelida
Arthropoda
Mollusca
Chordata
pulmonary sac
ctenidia
book lungs
trachea
Sepia
Loligo
Octopus
Mytilus
Mikimoto
Katu
Haeckel
Von Mohl
Pinctada
Unio
Anodonta
Ostrea
Chaetopterus
Aphrodite
Amphihite
Limidus
Sepia
Loligo
Patella
Nautilus
Teredo
Doris
Loligo
Octopus
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Pelecypoda
Scaphopoda
Bivalva
Gastropoda
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
Amphineve
Gastropoda
Scaphopoda
Caphalopoda