What is the class of a molluscs?
Living mollusks are usually grouped into eight classes: Gastropoda (see gastropod), Bivalvia or Pelecypoda (see bivalve), Cephalopoda (see cephalopod), Scaphopoda (tusk shells), Aplacophora (Solenogasters), Caudofoveata (sometimes included in the Aplacophora order), Polyplacophora (chitons), and Monoplacophora.
What are the 5 main classes of Mollusca?
Classification
| Class | Major organisms |
|---|---|
| Gastropoda | all snails and slugs including abalone, limpets, conch, nudibranchs, sea hares, sea butterflies |
| Bivalvia | clams, oysters, scallops, geoducks, mussels, rudists† |
| Polyplacophora | chitons |
| Cephalopoda | squid, octopuses, cuttlefish, nautiluses, Spirula, belemnites†, ammonites† |
What is the common name for Scaphopoda?
tusk shells
Integrated Taxonomic Information System – Report
| Taxonomic Rank: | Class |
| Synonym(s): | |
| Common Name(s): | tusk shells [English] |
| scaphopodes [French] | |
| dentálio [Portuguese] |
What are examples of Scaphopoda?
Dentaliida
DentaliidaeGadilida
Tusk shell/Lower classifications
What are the 8 classes of molluscs?
The Phylum Mollusca consist of 8 classes: 1) the Monoplacophora discovered in 1977; 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) …
What are the 8 classes of phylum Mollusca?
What are the 3 classes of phylum Mollusca?
Mollusks are subdivided into seven classes with most species found in three of those classes: Gastropoda, Bivalvia, and Cephalopoda. Gastropods make up the largest class of mollusks, and they include both snails and slugs.
Does Scaphopoda have foot?
SCAPHOPODA, the third of the five classes into which the Phylum Mollusca is divided. ‘ The Scaphopoda are marine Molluscs with the body, especially the foot, adapted to a burrowing life in sand.
What is the meaning of Scaphopoda?
The scientific name Scaphopoda means “shovel foot”, a term that refers to the “head” of the animal, which lacks eyes and is used for burrowing in marine mud and sediments. The most distinctive feature of scaphopods is that the tubular shell is open at both ends, not just one end as in most molluscs.
What are the 3 main mollusks?
The three major groups of mollusks are gastropods, bivalves, and cephalopods (SEF ul o pods). The largest group is the gastropods. These are mollusks like snails and slugs that have just one shell or no shell at all. Gastropods creep along on their broad foot.
What is the meaning of class Scaphopoda?
CLASS SCAPHOPODA. 1. small class of bilaterally symmetrical marine forms comprising the tooth shells Familiarity information: CLASS SCAPHOPODA used as a noun is very rare.
What is another name for mollusca?
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. The members are known as molluscs or mollusks ( / ˈmɒləsk / ).
What are the members of the phylum Mollusca called?
The members are known as molluscs or mollusks (/ˈmɒləsk/). Around 85,000 extant species of molluscs are recognized. The number of fossil species is estimated between 60,000 and 100,000 additional species. Molluscs are the largest marine phylum, comprising about 23% of all the named marine organisms.
What is the general shape of a mollusc?
The generalized mollusc is bilaterally symmetrical and has a single, ” limpet -like” shell on top. The shell is secreted by a mantle covering the upper surface. The underside consists of a single muscular “foot”. The visceral mass, or visceropallium, is the soft, nonmuscular metabolic region of the mollusc.