devilfish
cuttlefish
black mussel
sea hare
scallop
sea mussel
razor shell
any of these
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
prismatic layer
periostracum
nacre
mantle
Trochophore
Veliger
Glochidium
Muller's larva
Chiton
Unio
Teredo
Nautilus
Unio
Mytilus
Teredo
Tridacna
Amphineve
Gastropoda
Scaphopoda
Caphalopoda
Unio
Vila
Mytilus
Loligo
Nautilus
Pila
Argpnata
Unio
Pila
Aplysia
Helix
Aphrodite
Pila
Starfish
Housefly
Earthworm
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
cuttlefish
squid
flying squid
devil fish
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda
Gastropoda
Scaphopoda
Bivalva
Cephalopoda
thoracic appendages
foot
head appendages
none of these
book lungs
pulmonary sacs
gills
respiratory siphons
Echinodenns
Arthropods
Molluscs
Annelida
Pila
Unio
Mytilus
Nautilus
Gastropoda
Caphalopoda
Bivalvia
Scaphopoda
patella
limax
teredo
chiton
Sepia
Loligo
Patella
Nautilus
Sepia
Lamellidens
Chiron
Pila
Annelida
Arthropoda
Mollusca
Chordata
Pinctada
Unio
Anodonta
Ostrea
elephant tusk shells
butterflies of the sea
lerrfons of the sea
cucumbers of the sea
Annelida
Moliusca
Echinodermata
Arthropoda
Gastropoda
Criton
Bivalvia
Monoplacophora