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Molluscs
Details of mollusk dissections/phylogeny
31
Biology
Undergraduate 4
11/12/2013
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Term
Subclass Prosobranchia
 Definition
Sea, land, and FW snails
Term
O. Archaeogastropoda
 Definition
Snails/slugs; mostly herbivores, 2 gills, 2 chambered heart, broadcast spawners
Term
F. Patellidae
 Definition
True limpets
Term
F. Fissurellidae
 Definition
Keyhole limpets
Term
F. Neritidae
 Definition
Nerita
Term
O. Mesogastropoda
 Definition
Radula w/ 7 teeth (dentricles); torsion; heart w/ one atrium & one ventricle; NS more developed than Archaeogastropods; excretory/reproductive ducts separate
Term
F. Littorinidae
 Definition
True periwinkles
Term
F. Strombidae
 Definition
Conches
Term
F. Cypraeidae
 Definition
Cowries
Term
O. Neogastropoda
 Definition
Organs only on one side due to torsion; radula with 3 dentricles; separate sexes
Term
F. Conidae
 Definition
Cone shells
Term
Subclass Opisthobranchia
 Definition
Gills behind heart; lack shells; two pairs of tentacles; single gill behind/right of the heart
Term
O. Anaspidea
 Definition
Sea hares
Term
O. Nudibranchia
 Definition
Nudibranchs
Term
O. Sacoglossa
 Definition
Sap-sucking slugs
Term
Subclass Pulmonata
 Definition
Snails/slugs that can breathe air; pallalial lung instead of gills; land, FW, or marine
Term
Class Bivalvia
 Definition
Laterally compressed body w/ 2 hinged shells
Term
F. Cardiidae
 Definition
Cockles
Term
F. Cultellidae
 Definition
Razor clams
Term
F. Mytilidae
 Definition
Mussels
Term
F. Pectinidae
 Definition
Scallops
Term
F. Pteriidae
 Definition
Pearl oysters
Term
F. Ostreidae
 Definition
Oysters
Term
F. Tridacnidae
 Definition
Giant clams
Term
Class Cephalopoda
 Definition
Highly intelligent; huge muscularized foot; pelagic
Term
Subclass Nautiloidea
 Definition
Nautilus
Term
Subclass Coleoidea
 Definition
Squids/octopus
Term
O. Sepioida
 Definition
Cuttlefish
Term
O. Teuthoida
 Definition
Squid
Term
O. Octopoda
 Definition
Octopus
Term
O. Vampyromorpha
 Definition
Vampire Squid
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