giant clam
giant squid
giant Snail
giant octopus
B. giant squid
an annelid
an arthropod
an echinoderm
a mollusc
book lungs
pulmonary sacs
gills
respiratory siphons
devilfish
cuttlefish
black mussel
sea hare
giant clam
giant squid
giant Snail
giant octopus
prismatic layer
periostracum
nacre
mantle
Sepia
Lamellidens
Chiron
Pila
Octopus
Sepia
Mytilus
Teredo
Amphineve
Gastropoda
Scaphopoda
Caphalopoda
elephant tusk shells
butterflies of the sea
lerrfons of the sea
cucumbers of the sea
pulmonary sac
ctenidia
book lungs
trachea
Gastropoda
Criton
Bivalvia
Monoplacophora
Nautilus
Pila
Argpnata
Unio
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
patella
limax
teredo
chiton
Annelida
Moliusca
Echinodermata
Arthropoda
Mikimoto
Katu
Haeckel
Von Mohl
Pila
Unio
Mytilus
Nautilus
Pinctada
Unio
Anodonta
Ostrea
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Chaetopterus
Aphrodite
Amphihite
Limidus
external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
Teredo
Doris
Loligo
Octopus
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
Trochophore
Veliger
Glochidium
Muller's larva
Unio
Vila
Mytilus
Loligo
Gastropoda
Scaphopoda
Bivalva
Cephalopoda
scallop
sea mussel
razor shell
any of these
myoglobin
anthocyanin
haemocyanin
hemoglobin
Neoplina
Chiton
Dentalium
Patella
Crab
Aretticola
Milipede
Centipede