What is the difference between gastropods and pelecypods

Mollusks may be primitively segmented, but all but the monoplacophorans characteristically lack segmentation and have bodies that are to some degree spirally twisted e. The Phylum Mollusca consist of 8 classes: 1 the Monoplacophora discovered in ; 2 the worm-like Aplacophora or solenogasters of the deep sea; 3 the also worm-like Caudofoveata; 4 the Polyplacophora, or chitons; 5 the Pelecypoda or bivalves; 6 the Gastropoda or snails; 7 the Scaphopoda, or tusk shells; and 8 the Cephalopoda that include among others squid and the octopus.

On the left is a member of the very diverse Gastropoda. This particular example is the intertidal snail Acanthina angelica , which subsists by using the thorn like projection of the lip of its shell arrow to pry open the barnacle Chthalamus see Arthropoda. Acanthina is a member of the Class Gastropoda, whose members are characterized by spiral shells, a fleshy foot, and a rasping organ called a radula. Other gastropods you are likely to see include the sea slugs and hares, limpets, conchs, murex, olive shells, conus, and many others.

The Pelecypoda are the bivalve mollusks and include oysters, clams, and scallops. The example to the right is the rock piddock, Pholas chiloensis.

Hope this helped! Gastropods are a class of mollusks, otherwise known as snails, slugs, and limpets. Gastropod literally means "stomach-foot" the bottom of the snail where it inches along is called the foot. In its visceral mass is the stomach where you get the term stomach foot or gastropod.

No it is a herbivore. Yes, a gastropod is an invertebrate. The reason I know this is because snails and worms are classified as gastropods. They are vertebrates with exoskeletons as well.

I'm pretty sure that all snails are gastropods but i am certain that a zebra top shell is a gastropod. If aliens exist, some alien races could possibly have gastropod characteristics, such as snails and slugs. It's a snail. No, a snail is a gastropod. No, Octopuses are Cephalopods. A snail is a gastropod. Log in. Clams Oysters and Scallops. Slugs and Snails.

Study now. See Answer. Best Answer. Study guides. Q: What is the difference between a gastropod and a pelecypod? Write your answer Related questions. Cephalopods have much more specific diets than gastropods.

All species of cephalopods are carnivores, meaning they live on animal foods alone. Their exact diet varies between species, but usually consists of fish, crustaceans, other mollusks and worms. Most gastropods are herbivorous -- or plant-eating -- although their feeding habits vary greatly between species.

They can be detritivores, who eat detritus; grazers, who feed on grass; scavengers, who search for both plant and animal matter; browsers, who feed on leaves, barks and stems; or carnivores. All species of gastropods, expects for slug species, have hard, external shells to protect their internal organs. No cephalopods -- with the exception of species belonging to the taxonomic subclass Nautiloidea -- have external shells. It's thought that cephalopods evolved from certain types of shelled gastropods, which may be why some species -- such as cuttlefish -- still retain an internal shell.