Quesen tapeworm

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Quesen tapeworm
Quesen tapeworm and its fin

Quesen tapeworm and its fin

Systematics
Class : Tapeworms (Cestoda)
Subclass : True tapeworms (Eucestoda)
Order : Cyclophyllidea
Family : Taeniidae
Genre : Taenia
Type : Quesen tapeworm
Scientific name
Taenia multiceps
Leske , 1786

The quesen tapeworm ( Taenia multiceps , outdated: Multiceps multiceps ) is a tapeworm whose ultimate host is dogs . Adult tapeworms colonize the intestines of the final hosts. Intermediate hosts are horses, cattle, sheep, goats, pigs, rodents, rabbits, deer and humans, in which the Finn ( Coenurus cerebralis ) mainly settles in the brain, in rabbits and rodents also in the subcutaneous tissue or in the connective tissue of the skeletal muscles. In sheep, its fin causes the "turning sickness " ( coenurose ), which is why it is also known as a sheep tapeworm .

morphology

The rostellum has 22–34 hooks. The testicles lie in two horizontal positions, do not reach the front end of the tapeworm limb . The genital pore is to the side, just behind the middle of the tapeworm segment and is slightly raised. The uterus has 9-26 main lateral arms, which are somewhat rounded and give the limb a characteristic appearance.

The fin is up to 10 cm large, has a delicate wall and contains protoscolices arranged in groups .

literature

  • A. Varcasia et al .: Genetic variation within Taenia multiceps in Sardinia, Western Mediterranean (Italy) . In: Parasitology Research 99 (2006), pp. 622-626.
  • William M. Samuel et al .: Parasitic diseases of wild mammals . Wiley-Blackwell, 2nd ed. 2001, ISBN 9780813829784 , pp. 159-161.

Web links

Commons : Quesen tapeworm ( Taenia multiceps )  - Collection of pictures, videos and audio files