WebThe clitellum is a swelling of the body found in sexually mature worms and is active in the formation of an egg capsule, or cocoon. This is the earthworm reproductive organ. Eggs are produced in the ovaries and pass out of the body through female genital pores. Sperm are produced in the testes and pass out through tiny male genital pores. WebUsually there are 120 true somites. A fleshy lobe, the prostcmium, projects over the mouth in front of the first segment. The skin of segments, fourteenth, fifteenth and sixteenth, is swollen and pale in mature worms to form a saddle-shaped structure called clitellum or cingulum; it secretes the material for producing cocoons.

Clitellata - Wikipedia

WebClitellum (the band around their body) is milky white, smooth, and flat to their body Often found in groups Soil looks very grainy at the surface, like coffee grounds Can reproduce by parthenogenisis (asexually), maturing in 60 days, allowing two hatches per season Annual species, but tiny cocoons overwinter in the soil WebA group known as alciopid polychaetes have a more complex eye that contains a lens, however. Polychaete worms have a brain and a nervous system. Polychaetes exhibit both sexual and asexual reproduction. The animals lack a clitellum, which is the thick ring around an earthworm’s body that plays a role in reproduction. hake and pasta

anatomy - WormWatch

WebSep 7, 2024 · The following section of the worm's body is called the clitellum and is where the cocoon is formed. The clitellum is more prominent than the rest of an earthworm's body and resembles a thick ring ... WebJul 13, 2024 · Unlike the helpful earthworm castings that feed our garden plants, the castings of jumping worms seem to keep nutrients bound up and can easily get washed away, depleting the soil. According to the UMN Jumping Worms Project, the jumping worm “radically alters soil structure and chemistry.”. hake and potato recipes