Strongylida
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Strongylida".

Strongylida
Scientific classification
Kingdom: Animalia Phylum: Nematoda Class: Secernentea Subclass: Rhabditia Order: Strongylida
Families
Amidostomatidae Ancylostomidae Cloacinidae Diaphanocephalidae Dictyocaulidae Globocephalidae Heligosomatidae Metastrongylidae Ollulanidae Strongylidae Strongylacanthidae Syngamidae Trichostrongylidae Uncinariidae

The order Strongylida includes many of the important nematodes found in the gastrointestinal tracts of ruminants, horses, and swine, as well as the lungworms of ruminants and, the hookworms of dogs and cats.

This order includes:

• Amidostomatidae
• Ancylostomidae
• Cloacinidae
• Diaphanocephalidae
• Dictyocaulidae
• Globocephalidae
• Heligosomatidae
• Metastrongylidae
• Ollulanidae
• Strongylidae
• Strongylacanthidae
• Syngamidae
• Trichostrongylidae
• Uncinariidae

Major Families

Diaphanocepaloidea

These are parasites of lizards and snakes. They have a direct life cycle in soil.

Ancylostomatoidea

These have very large buccal vavities. They infect the small intestine of mammal carnivores by skin penetration.

Strongyloidea

These have large buccal capsules with corona radiata. Most of them infect the large intestine by oral ingestion of the larva.

Trichostrongyloidea

These worms have very small mouths and are found in a large number of hosts

Metastrongyloidea

Main article: Metastrongylidae

All of these parasites go through a snail to infect the lungs or vascular system of mammals, artiodactyls, carnivores, marsupials, and cetacea.

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