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Infraclass of molluscs From Wikipedia, the free encyclopedia
Heteroconchia is a taxonomic infraclass of diverse bivalve molluscs, belonging to the subclass Autobranchia.[1]
Heteroconchia | |
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The venerid species Austrovenus stutchburyi, the New Zealand cockle, is sold internationally as sea food. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Subclass: | Autobranchia |
Infraclass: | Heteroconchia J. E. Gray, 1854 |
Subterclasses | |
This infraclass includes the cockles, Venus clams,[1] the freshwater mussels, brooch clams, as well as Heterodonta and Archiheterodonta.[2]
These bivalves are distinguished by having the two halves of the shell equally sized (i.e, they are equivalved) and having a few cardinal teeth separated from a number of long lateral teeth. Their shells lack a nacreous layer, and the gills are lamellibranch in form. Most species have a siphon.[3]
The following tree is their info which has been updated with the latest information from the World Register of Marine Species:[1]
Infraclass: Heteroconchia
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