Lizard ascarids indirect?! (Roundworms)


Sun Apr 10 15:47:13 EST 2005


___________________________________
Collegues,

Roger J. Klingenberg in his "Understanding Reptile Parasites"
on page 51 states:

"Ascardis (Sulcascaris and Anqusticaecum in chlonians) are very
common reptile parasites. They have an INDIRECT life cycle and require
intermediate hosts. Roundworms are acquired by ingesting intermediate
hosts such as frogs, fish, amphibians, lizards, rodents, and marsupials."

However, the human roundworm Ascaris lumbricoides has a direct life
cycle.

Are these genus differences? Are there lizard roundworms with a
direct life-cycle as well? Can insects serve as intermediate
hosts in the above mentioned Ascarids?

E-mail replies only please,

Jim
J. Graham PhD
Biology Department 
Washington University of St. Louis 



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