clitellum


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clitellum

(klī-tĕl′əm)
n. pl. cli·tella (-tĕl′ə)
A glandular swelling of the epidermis of certain annelid worms, such as earthworms, that secretes a viscous fluid to form a cocoon in which the eggs are deposited.

clitellum

a saddle-like structure present around part of the anterior half of some ANNELID worms which contains glands that secrete mucus, forming a sheath round copulating animals and a cocoon round the eggs.
References in periodicals archive ?
Body wall thin and transparent, both epidermis and longitudinal musculature 7-9 [micro]m thick; in prostomium and clitellum epidermis is thicker.
Granulated secretory cells were observed throughout the dorsal and dorso-lateral epidermis, along the length of the clitellum.
In addition to their unusual length, a striking morphological feature of mature Rhinodrilus priollii specimens is their saddle-like clitellum which can measure up to ~3 cm in diameter, almost twice the diameter of a typical midbody segment.
Effect of imidacloprid on the total protein contents in head, clitellum and abdominal region of earthworm Pheretima posthuma.
Comparative effect ofimidacloprid on the total protein content in the head, Clitellum and abdomen region of Earthworm Pheretima posthuma.
Eisenia foetida, sexually mature and with developed clitellum, was obtained from local markets (Agricultural "Los Nogales", Paine, Santiago, Chile).
Selected animals were placed in ethanol solution (5%) and dissected to extract the male reproductive organs, located between the prostomium and the clitellum.
crassa, which was described on a single, not fully mature specimen with no clitellum, having two pairs of nephridia per segment, with the gizzard in segment 7(
As from segment 9, ab may be associated with papillae, which occasionally extend on a few segments beyond clitellum.
Holotype: Contracted length 320 mm, diameter after clitellum 20 mm.
Possibly these two last species are related, differing only in the shape and location of the clitellum and tubercula pubertatis.