Difference between revisions of "Toxascaris leonina"

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{{Taxobox
 
{{Taxobox
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{| cellpadding="10" cellspacing="0" border="1"  
 
{| cellpadding="10" cellspacing="0" border="1"  
 
| Also known as:
 
| Also known as:
| '''Toxascaris limbata
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| '''''Toxascaris limbata
 
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==Identification==
 
==Identification==
''T. leonina'' is of the superfamily [[Ascaridoidea]]. It is similar in appearance to ''[[Toxocara canis]]'', but slightly smaller at around 10cm in length. There are three large lips surrounding the mouth, and there is no buccal capsule.
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''T. leonina'' is of the superfamily [[Ascaridoidea]]. It is similar in appearance to ''[[Toxocara canis]]'', but slightly smaller at around 10cm in length. There are three large lips surrounding the mouth, and there is no buccal capsule.
  
The eggs are ovid, around 75μm in length, with a thick outer shell.
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The eggs are ovoid, around 75μm in length, with a thick outer shell.
  
 
==Life Cycle==
 
==Life Cycle==
The infective stage of ''T. leonina'' is L2, which are found in the egg. The eggs are ingested by the host, hatch, and enter the alimentary tract. The larvae then penetrate the wall of the intestine. The larvae continue to develop and mature into adults. The adults live in the lumen of the intestine. In the host:
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The infective stage of ''T. leonina'' is L2, which are found in the egg. The eggs are ingested by the host, hatch, and enter the alimentary tract. The larvae then penetrate the wall of the intestine. The larvae continue to develop and mature into adults. The adults live in the lumen of the intestine. In the host there is:
*there is '''no prenatal transmission'''
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*'''no prenatal transmission'''
**there is '''no transmammary transmission'''
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*'''no transmammary transmission'''
**there is '''no hepato-tracheal migration'''.
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*'''no hepato-tracheal migration'''.
  
 
The prepatent period is 10-11 weeks.
 
The prepatent period is 10-11 weeks.
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[[Category:Cat_Nematodes]]
 
[[Category:Cat_Nematodes]]
 
[[Category:To_Do_-_Max]]
 
[[Category:To_Do_-_Max]]
[[Category:To_Do_-_Review]]
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[[Category:Expert_Review]]

Revision as of 10:22, 4 August 2010


Toxascaris leonina
Class Nematoda
Super-family Ascaridoidea
Also known as: Toxascaris limbata

Hosts

Dogs, cats, and foxes.

Identification

T. leonina is of the superfamily Ascaridoidea. It is similar in appearance to Toxocara canis, but slightly smaller at around 10cm in length. There are three large lips surrounding the mouth, and there is no buccal capsule.

The eggs are ovoid, around 75μm in length, with a thick outer shell.

Life Cycle

The infective stage of T. leonina is L2, which are found in the egg. The eggs are ingested by the host, hatch, and enter the alimentary tract. The larvae then penetrate the wall of the intestine. The larvae continue to develop and mature into adults. The adults live in the lumen of the intestine. In the host there is:

  • no prenatal transmission
  • no transmammary transmission
  • no hepato-tracheal migration.

The prepatent period is 10-11 weeks.