Caphalopoda
Gastropoda
Pelecypoda
Scaphopoda
C. Pelecypoda
book lungs
pulmonary sacs
gills
respiratory siphons
Annelida
Moliusca
Echinodermata
Arthropoda
Neoplina
Chiton
Dentalium
Patella
Crab
Aretticola
Milipede
Centipede
scallop
sea mussel
razor shell
any of these
Chaetopterus
Aphrodite
Amphihite
Limidus
Gastropoda
Scaphopoda
Bivalva
Cephalopoda
Mikimoto
Katu
Haeckel
Von Mohl
Pila
Aplysia
Helix
Aphrodite
Pinctada
Unio
Anodonta
Ostrea
elephant tusk shells
butterflies of the sea
lerrfons of the sea
cucumbers of the sea
Sepia (Caphalopoda)
Uttio (Pelecypoda)
Dentalium (Scaphopoda)
Pila (Gastropoda)
Sepia
Loligo
Patella
Nautilus
Pila
Starfish
Housefly
Earthworm
cuttlefish
squid
flying squid
devil fish
pulmonary sac
ctenidia
book lungs
trachea
Unio
Vila
Mytilus
Loligo
Trochophore
Veliger
Glochidium
Muller's larva
prismatic layer
periostracum
nacre
mantle
Chiton
Unio
Teredo
Nautilus
expelling water in a jet through siphon
lashing moment of their cephalic arms
characteristic undulations of their lateral fins
none of these
Gastropoda
Criton
Bivalvia
Monoplacophora
a sensory organ for balancing
a sensory organ for smell
swimming organ
none of these
Nautilus
Pila
Argpnata
Unio
patella
limax
teredo
chiton
dentalium
cypraea
nautilus
pinctada
external shell of cuttle fish
internal shell of cuttle fish
bones of octopus
calcareous matter of cuttle fish
sea hare
Pond snail
fresh water mussel
chiton
Teredo
Doris
Loligo
Octopus
devilfish
cuttlefish
black mussel
sea hare