WebThey belong to the Class Clitellata (along with earthworms, Subclass Oligochaeta) because of the presence of a clitellum, which is a swelling towards the head of the animal, where … WebNov 28, 2024 · Different earthworm species are found in natural, agricultural, and urban environments; as of the mid 1990s there were 51 earthworm species reported in Florida. The two most widely distributed wild earthworms in Florida are Amynthas corticis and A. gracilis. ... This is called the clitellum (Figure 4) and is where the cocoon is formed. ...
Solved 12) Free-swimming polychaetes using these structures
WebAug 22, 2012 · It is usually found near the anterior end (the mouth end) of an earthworm, around a quarter or a third of the way down the worm’s body. The positioning of the … 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. dinosaur facebook cover photo
EARTHWORM ANATOMY - EXTERNAL FEATURES - Iowa State …
WebTry to identify reproductive adults: those earthworms will have a well-defined clitellum. The clitellum is usually a different colour than the earthworm’s body and located close to the head of the earthworm. The clitellum is … WebThe meaning of CLITELLUM is a thickened glandular section of the body wall of some annelids that secretes a viscid sac in which the eggs are deposited. a thickened … The clitellum is a thick, saddle-like ring found in the epidermis (skin) of the worm, usually with a light-colored pigment. To form a cocoon for its eggs, the clitellum secretes a viscous fluid. This organ is used in sexual reproduction of some annelids, such as leeches. In earthworms, the clitellum can only be seen … See more The clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches, that secretes a viscid sac in which eggs are stored. It is located near the anterior end of the body, … See more • Earthworm reproduction See more • Hess, Roberta T.; Vena, Joseph A. (January 1974). "Fine structure of the clitellum of the annelid Enchytraeus fragmentosus". Tissue and Cell. 6 (3): 503–514. doi:10.1016/0040-8166(74)90041-x. PMID 4279471. • Grove, A. J.; Cowley, L. F. … See more dinosaur expeditions isle of wight