What is the common name of Nereis?
Nereis worms are commonly known as rag worms or clam worms. The body is long, slender, and dorso-ventrally flattened, reaching a length of 5-30 cm.
What is Nereis in biology?
they belong to the phylum annelida. Ringworm is an infection of the skin, hair, or nails caused by a fungus. The flatworms belong to the phylum Platyhelminthes. Roundworm belongs phylum Nematoda. Biology.
Why is Nereis called sandworm?
Alitta virens (common names include sandworm and king ragworm; older scientific names including Nereis virens are still frequently used) is an annelid worm that burrows in wet sand and mud. It was first described by biologist Michael Sars in 1835. It is classified as a polychaete in the family Nereididae.
How do you pronounce Nereis?
noun, plural ne·re·i·des [ni-ree-i-deez].
How many segments are in Nereis?
External Structures of Nereis Dumerilii:
The animal is long, narrow and cylindrical (Fig. 17.2). The body is divisible into about 80 segments or metameres and a distinct head is present at the anterior end.
Is Nereis aquatic?
Nereis is an aquatic annelid.
Is commonly known as sea mouse?
Aphrodita also is known as Sea mouse. It is a marine polychaete worm (Phylum Annelida) found in the Mediterranea sea and the eastern and western Atlantic Ocean. The body of the sea mouse is completely covered in a dense mat of setae which are hairlike structures.
What is Heteronereis?
Definition of heteronereis
: a free-swimming dimorphic sexual individual of certain polychaete worms (family Nereidae) characterized by greatly enlarged eyes, enlarged and modified parapodia and other appendages, and more or less complete obliteration of the internal viscera by masses of developing germ cells.
What does the term polychaete mean?
Definition of polychaete
: any of a class (Polychaeta) of chiefly marine annelid worms (such as clam worms) usually with paired segmental appendages, separate sexes, and a free-swimming trochophore larva.