Difference between revisions of "Category:Pseudophyllidea"

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(Created page with ' *Pseudophyllidean tapeworms have a scolex with four longitudinal grooves. *They have a genital pore which is centrally placed on each segment. *The eggs and life-cycle have …')
 
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*Pseudophyllidean tapeworms have a scolex with four longitudinal grooves.  
 
*Pseudophyllidean tapeworms have a scolex with four longitudinal grooves.  
  
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*There are no pseudophyllideans of importance in the UK, but some are of significance in tropical or sub-tropical areas (for example Spirometra), and in sub-arctic regions (for example Diphyllobothrium).
 
*There are no pseudophyllideans of importance in the UK, but some are of significance in tropical or sub-tropical areas (for example Spirometra), and in sub-arctic regions (for example Diphyllobothrium).
  
 
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[[Category:Cestodes]]
 
[[Category:Cestodes]]

Revision as of 11:52, 29 April 2010

  • Pseudophyllidean tapeworms have a scolex with four longitudinal grooves.
  • They have a genital pore which is centrally placed on each segment.
  • The eggs and life-cycle have some similarity to that of the trematodes.
  • The Pseudophyllidean egg shell is thick, brown and operculate.
  • The Pseudophyllidean life-cycle uses two intermediate hosts – the coracidium, which emerges after hatching, must first be ingested by a crustacean. A larval procercoid develops within the body cavity of the crustacean. If the crustacean is then eaten by a freshwater fish, the procercoid is liberated and develops into a second larval stage, a plerocercoid, within the muscles of this new host. The plerocercoid possesses the characteristic scolex – it is only this stage that is infective to the final host.
  • There are no pseudophyllideans of importance in the UK, but some are of significance in tropical or sub-tropical areas (for example Spirometra), and in sub-arctic regions (for example Diphyllobothrium).

<ncl style=bullet maxdepth=5 headings=bullet headstart=2 showcats=1 showarts=1>Category:Pseudophyllidea</ncl>

Pages in category "Pseudophyllidea"

The following 2 pages are in this category, out of 2 total.