Taxonomic changes »
Taxon schemes »
Make taxonomic Flickr tags for this taxon »
Invite photos from other sites »
Wikipedia taxobox »
Search descendant taxa »
Embed a widget for this taxon on your website »
Covered in epibionts, these pens shells look much like rocks when alive.
The Pterioida are a suborder of large and medium-sized saltwater clams, marine bivalve mollusks. It includes five families, among them the Pteriidae (pearl oysters and winged oysters).
Terms of Service