external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
patella
limax
teredo
chiton
cuttlefish
squid
flying squid
devil fish
Neoplina
Chiton
Dentalium
Patella
Amphineve
Gastropoda
Scaphopoda
Caphalopoda
Pinctada
Unio
Anodonta
Ostrea
pulmonary sac
ctenidia
book lungs
trachea
thoracic appendages
foot
head appendages
none of these
limax and helix
pila and helix
lymnaea and planorbis
none of these
Mikimoto
Katu
Haeckel
Von Mohl
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
Chaetopterus
Aphrodite
Amphihite
Limidus
elephant tusk shells
butterflies of the sea
lerrfons of the sea
cucumbers of the sea
Annelida
Arthropoda
Mollusca
Chordata
Crab
Aretticola
Milipede
Centipede
Pila
Unio
Mytilus
Nautilus
Sepia
Octopus
Aplysia
Doris
Gastropoda
Caphalopoda
Bivalvia
Scaphopoda
an annelid
an arthropod
an echinoderm
a mollusc
Gastropoda
Criton
Bivalvia
Monoplacophora
myoglobin
anthocyanin
haemocyanin
hemoglobin
Chiton
Unio
Teredo
Nautilus
Octopus
Sepia
Mytilus
Teredo
Pila
Starfish
Housefly
Earthworm
Pholas
Teredo
Solen
Dentalium
prismatic layer
periostracum
nacre
mantle
dentalium
cypraea
nautilus
pinctada
foot is located on head
head is fused with thorax
head is located on foot
notochord extends upto cephalic region
Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda