| Crassula aequilatera | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Venerida |
| Superfamily: | Mactroidea |
| Family: | Mactridae |
| Genus: | Crassula |
| Species: | C. aequilatera |
| Binomial name | |
| Crassula aequilatera (Reeve, 1854) | |
| Synonyms | |
| |
Crassula aequilatera, known as the triangle shell, is a surf clam, a moderately large marine bivalve mollusc in the family Mactridae. [1]
This marine species is endemic to New Zealand.
Bivalvia, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs like the radula and the odontophore. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. The majority are filter feeders. The gills have evolved into ctenidia, specialised organs for feeding and breathing. Most bivalves bury themselves in sediment where they are relatively safe from predation. Others lie on the sea floor or attach themselves to rocks or other hard surfaces. Some bivalves, such as the scallops and file shells, can swim. The shipworms bore into wood, clay, or stone and live inside these substances.
Scallop is a common name that encompasses various species of marine bivalve mollusks in the taxonomic family Pectinidae, the scallops. However, the common name "scallop" is also sometimes applied to species in other closely related families within the superfamily Pectinoidea, which also includes the thorny oysters.
Amalda is a genus of medium-sized sea snails, a marine gastropod mollusc in the family Ancillariidae, the olives and allies.
Mactridae, common name the trough shells or duck clams, is a family of saltwater clams, marine bivalve mollusks in the order Venerida.
Mactra is a large genus of medium-sized marine bivalve mollusks or clams, commonly known as trough shells or duck clams. Mactra is the type genus within the family Mactridae.
Siphonaria australis is a species of air-breathing sea snail or false limpet, a marine pulmonate gastropod mollusc in the family Siphonariidae, the false limpets.
Lima zealandica is a species of bivalve mollusc in the family Limidae.
Pinna is a genus of bivalve molluscs belonging to the family Pinnidae.
Spisula is a genus of medium-sized to large marine bivalve mollusks or clams in the subfazmily Mactrinae of the family Mactridae, commonly known as surf clams or trough shells.
Paralaoma servilis is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Punctidae, the dot snails.
Petricola is a genus of saltwater clams, marine bivalve molluscs in the subfamily Petricolinae of the family Veneridae, the Venus clams.
Cellana ornata is a species of true limpet, a marine gastropod mollusc in the family Nacellidae, one of the families of true limpets.
Diodora is a genus of small to medium-sized keyhole limpet in the family Fissurellidae.
Periglypta is a genus of bivalves in the subfamily Venerinae of the family Veneridae.
Lutraria is a genus of medium-sized marine bivalve mollusks or clams, commonly known as otter shells.
Hysteroconcha lupanaria is a species of marine bivalve mollusc in the family Veneridae, the Venus clams.
Mulinia cleryana is a species of medium-sized saltwater clam, a marine bivalve mollusc in the family Mactridae. This species occurs in the Caribbean Sea and the western Atlantic Ocean as far south as Brazil.
Penion mandarinus, common name the mandarin penion, southern siphon whelk or Waite's buccinum whelk, is a species of medium-to-large predatory sea snail or whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks.
Neripteron auriculatum is a species of brackish water and freshwater snail, an aquatic gastropod mollusk in the family Neritidae, the nerites.
Pinna muricata is a species of bivalves belonging to the family Pinnidae.