oligochaeta in English

noun
1
a class of annelid worms that includes the earthworms. They have simple setae projecting from each segment and a small head lacking sensory appendages.
Annelids with a clitellum (a swelling towards the head of the animal, where the gonads are located) are classified in the Clitellata, which is further divided into Hirudinea and Oligochaeta (including the earthworms).

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Below are sample sentences containing the word "oligochaeta" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "oligochaeta", or refer to the context using the word "oligochaeta" in the English Dictionary.

1. Through most of the 20th century Annelida was split into three major groups; Polychaeta, Oligochaeta (earthworms etc.) …

2. Annelids are divided into 3 groups, 2 of which are terrestrial and include earthworms (class Oligochaeta) and leeches (class Hirudinidea)

3. Clitellum A swollen, glandular, saddle-like region on the body of Oligochaeta and Hirudinea, which has a reproductive function

4. Until recently, Annelida was split into three major groups, each given class rank: Polychaeta (bristleworms), Oligochaeta (earthworms, etc.) and Hirudinea (leeches)

5. The Clitellum consists of a thickening of the epidermis, and is of two forms among the Oligochaeta. It is therefore obviously much thicker than the Clitellum in the limicolous forms

6. Annelids with a Clitellum (a swelling towards the head of the animal, where the gonads are located) are classified in the Clitellata, which is further divided into Hirudinea (leeches) and Oligochaeta (including the earthworms)

7. The Annuli into which segments are externally divided are so deeply incised as to render it impossible to distinguish, as can be readily done in the Oligochaeta as a rule, the limits of an annulus from …

8. Bloodworm, any of certain bright red, segmented, aquatic worms of the phylum Annelida. Included are worms of the freshwater genus Tubifex, also known as sludge worms (class Oligochaeta, family Tubificidae), which are used as a tropical-fish food

9. 15,986 flora were identified, of which 10% are endemic (p9). Statistics indicate that there are 307 nematodes , 200 oligochaeta , 145 acarina , 113 springtails , 7750 insects , 260 reptiles , 120 amphibians , 840 birds and 310 mammals of which 100 birds and 78 mammals are endemic (p9,10).