external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
B. internal shell of cuttle fish
myoglobin
anthocyanin
haemocyanin
hemoglobin
Trochophore
Veliger
Glochidium
Muller's larva
Chiton
Unio
Teredo
Nautilus
Mikimoto
Katu
Haeckel
Von Mohl
patella
limax
teredo
chiton
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Sepia
Octopus
Aplysia
Doris
Unio
Vila
Mytilus
Loligo
Chaetopterus
Aphrodite
Amphihite
Limidus
Sepia
Loligo
Octopus
Mytilus
Sepia
Lamellidens
Chiron
Pila
thoracic appendages
foot
head appendages
none of these
Neoplina
Chiton
Dentalium
Patella
sea hare
Pond snail
fresh water mussel
chiton
scallop
sea mussel
razor shell
any of these
Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda
Caphalopods
Scaphopods
Bivalva
Gastropods
book lungs
pulmonary sacs
gills
respiratory siphons
devilfish
cuttlefish
black mussel
sea hare
Gastropoda
Caphalopoda
Bivalvia
Scaphopoda
Crab
Aretticola
Milipede
Centipede
Nautilus
Pila
Argpnata
Unio
Sepia
Loligo
Patella
Nautilus
an annelid
an arthropod
an echinoderm
a mollusc
Gastropoda
Criton
Bivalvia
Monoplacophora
Unio
Mytilus
Teredo
Tridacna
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
Gastropoda
Scaphopoda
Bivalva
Cephalopoda