VOCABULARY LIST 9 - MOLLUSCA

MOLLUSCA
malacology
mollis
mantle (pallium)
foot
intrinsic muscles
retractor muscles
head
tentacles
tactile and chemoreceptors
eyes
visceral mass
ciliated epithelium
mucus
shell
calcium carbonate
protein meshwork
periostracum
prismatic layer
nacreous layer (nacre)
trochophore
veliger
ctenidium
filaments
afferent, efferent blood vessels
bipectinate
monopectinate
countercurrent
exhalent (excurrent)
inhalent (incurrent)
radula
radula apparatus
odontophore
retractor, protractor muscle complex
esophagus
stomach
sorting area
style sac
protostyle, crystalline style
food/mucus cord
gastric shield
cecum
eucoelom
schizocoelom
pericardium
periviscerum
excretion
nephridia, kidney
nephrostome
nephridiopore
ammonia, urea
circulation
dorsal heart
auricles
ventricle
hemocoel
hemocyanin
nervous system
pedal nerve cord
visceral nerve cord
reproduction
mixonephridia
external/internal fertilization
trochophore larva
veliger larva
velum
metamorphosis

APLACOPHORA
vermiform
pedal shield
pedal groove
chaetoderm
neomeniomorph
solenogaster

MONOPLACOPHORA
Neopalina galatheae
pallial groove
multiple parts

POLYPLACOPHORA
giant chiton, gumshoeCryptochiton stelleri
8 valves
esthetes (aesthetes)
girdle
subradula organ

GASTROPODA
torsion
spiraling
dextral
sinistral
detorsion
left-handed whelk - Busycon contrarium
shell aperture
whorls
body whorl
spire
apex
siphonal canal
operculum
columella
subclass Prosobranchia
limpets, abalone, cone shells, cowries
whelks, oyster drills, conchs, periwinkles
helmmits, moon snail, tulip snail, worm snail
slipper shell - Crepidula fornicata
violet snail
subclass Opisthobranchia
parapodia
nudibranchs
detorsion
shell-less
cerata
sea hare
subclass Pulmonata
pulmonary cavity
pneumostome
slugs, limpets, land snails
tree snails - Liguus spp.
apple snail - Pomacea palludosa

BIVALVIA
subclass Protobranchia
subclass Lamellibranchia
subclass Anomalodesmata
2 valves
hinge ligament
adductor muscles
foot retractor muscles
dorsal, exhalent siphon
ventral, inhalent siphon
byssus
bay oyster - Crassostrea virginica
Giant Pacific Clam - Tridacna gigantea
scallops - Pecten sp.
pearl oysters - Pinctada sp.
ship worms - Teredo sp.
freshwater mussels - Unionidae
glochidia

SCAPHOPODA
captacula
Dentalium

CEPHALOPODA
giant squid - Architeuthis sp.
raptorial
head-foot
squid, octopus, cuttlefish, nautilus
Octopus
Loligo
paper nautilus - Argonauta
vampire squid
blue-ringed octopus - Hapalochlaena maculosa
ammonites
subclass Nautiloidea
subclass Ammonoidea
subclass Coleoidea