What does Oligochaeta mean?

Oligochaeta (/ˌɒlɪɡəˈkiːtə, -ɡoʊ-/) is a subclass of animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, including all of the various earthworms.

What is an example of Oligochaeta?

Earthworm
NaididaeHaplotaxidsEnchytraeidaeLumbriculidae
Earthworms/Lower classifications
Oligochaete, any worm of the subclass Oligochaeta (class Clitellata, phylum Annelida). About 3,500 living species are known, the most familiar of which is the earthworm (q.v.), Lumbricus terrestris. Oligochaetes are common all over the world. They live in the sea, in fresh water, and in moist soil.

Which animal belongs to the class Oligochaeta?

Clitellata
Earthworms/Class

Why are earthworms classified as Oligochaeta?

Earthworms (Oligochaeta) The subclass Oligochaeta contains all the animals commonly thought of as ‘earthworms’. Long thin worms with no obvious appendages to their bodies and greatly reduced heads, so that when the animal is still it is not always obvious which end is the head and which is the tail!

How do oligochaeta reproduce?

All oligochaetes are hermaphroditic, and nearly all cross-fertilize by copulation. Male and female reproductive organs are located in separate segments. The worm then secretes a cocoon into which it deposits the eggs and the sperm; fertilization and development of the eggs occur in the cocoon.

How do you identify an oligochaeta?

Oligochaete worms have long, segmented, tubular bodies, giving them the appearance of a piece of thick spaghetti. They can range in length from just a few millimeters to over 10 feet! You won’t find a head or any limbs on these guys either, but they can still get around pretty well by peristalsis.

How many oligochaeta are there?

3,500 species
There are about 3,500 species of oligochaetes and they are found all over the world.

What are the 3 classes of Annelida?

Most authors accept the annelids as having three major classes: Polychaeta, Oligochaeta, and Hirudinea. Older systems would place the polychaetes and oligochaetes under the class Chaetopoda because both groups possess setae.

Who named Annelida first?

CSS :: Phylum Annelida

[A]. Linnaeus Lamarck
[C]. Dales Schwann

What do you mean by the word Oligochaeta?

ol·​i·​go·​chaete | \\ ˈä-li-gō-ˌkēt , ˈō-; ə-ˈli-gə-\\. : any of a class or order (Oligochaeta) of hermaphroditic terrestrial or aquatic annelids (such as an earthworm) that lack a specialized head.

What makes an oligochaete different from a polychaete?

Any of various annelid worms of the class Oligochaeta. Oligochaetes, unlike polychaetes, have relatively few bristles (called setae) along the body, and often have a thickened, ringlike region (called a clitellum) that secretes a substance used for enclosing eggs in a cocoon. Oligochaetes include the earthworms and a few small freshwater forms.

What are the bristles on an oligochaete called?

oligochete (ŏl′ĭ-gō-kēt′, ō′lĭ-) Any of various annelid worms of the class Oligochaeta. Oligochaetes, unlike polychaetes, have relatively few bristles (called setae) along the body, and often have a thickened, ringlike region (called a clitellum) that secretes a substance used for enclosing eggs in a cocoon.

What kind of worms are in the Oligochaeta family?

Specifically, oligochaetes comprise the terrestrial megadrile earthworms (some of which are semiaquatic or fully aquatic), and freshwater or semiterrestrial microdrile forms, including the tubificids, pot worms and ice worms (Enchytraeidae), blackworms (Lumbriculidae) and several interstitial marine worms.