Search results
Results From The WOW.Com Content Network
The annelids (/ ˈ æ n ə l ɪ d z /), also known as the segmented worms, are animals that comprise the phylum Annelida (/ ə ˈ n ɛ l ɪ d ə /; from Latin anellus 'little ring'). [ 3 ] [ a ] The phylum contains over 22,000 extant species , including ragworms , earthworms , and leeches .
Clitellate annelids are segmented worms characterised by the clitellum or girdle which is located near the head end of mature individuals. ... During reproduction ...
Lamellibrachia luymesi is a cold seep tube worm that reaches lengths of over 3 m and may be the most long-lived annelid, being over 250 years old. A still unclassified multilegged predatory polychaete worm was identified only by observation from the underwater vehicle Nereus at the bottom of the Challenger Deep , the greatest depth in the ...
Oligochaeta (/ ˌ ɒ l ɪ ɡ ə ˈ k iː t ə,-ɡ oʊ-/) [1] is a subclass of soft-bodied animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, including all of the various earthworms.
Reproduction occurs in midsummer, when the warmer water temperature and lunar cycle among other factors triggers sexually mature worms to transform into a non-feeding stage called the epitoke. With enlarged parapodia , they swim to the surface of the water where both sexes release gametes , and then die.
Aeolosoma is a genus of minute annelid worms, variously attributed either to oligochaetes or polychaetes. [2] Unlike most polychaetes, they reside in freshwater environments in various parts of the world. Aeolosoma are transparent worms, very thin and of the length of 1.5–2 mm. [3] They usually reproduce asexually. [4]
Tubifex Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Annelida Clade: Pleistoannelida Clade: Sedentaria Class: Clitellata Order: Tubificida Family: Naididae Subfamily: Tubificinae Genus: Tubifex Lamarck, 1816 Type species Lumbricus tubifex Müller, 1774 Tubifex is a cosmopolitan genus of tubificid annelids that inhabits the sediments of lakes, rivers and occasionally ...
Alitta succinea (known as the pile worm, clam worm or cinder worm) [3] is a species of marine annelid in the family Nereididae (commonly known as ragworms or sandworms). [4] It has been recorded throughout the North West Atlantic, as well as in the Gulf of Maine and South Africa. [2]