By what name is the species of Scaphopoda Mollusca 'Dentalium' commonly known?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Tusk shells.
The species Dentalium belongs to the class Scaphopoda within the phylum Mollusca and is commonly known as tusk shells. These marine mollusks have elongated, tubular, and slightly curved shells, resembling miniature elephant tusks. They are infaunal, living buried in sandy or muddy sea bottoms, and feed on microorganisms using their tentacle-like captacula. Tusk shells are bilaterally symmetrical and possess a simple body plan, lacking a distinct head or eyes, distinguishing them from other molluscan classes such as gastropods or bivalves.