larvae are only infective if ingested) Uncinaria lucasi (seals and sea lion pups in Pacific) Uncinaria stenocephala (carnivores, mainly canids, in Northern hemisphere) Superfamily: Strongyloidea (strongilids) Species have large, complex buccal capsules Some with corona radiata, which is a series of leaf-like structures surrounding mouth No teeth or plates at mouth opening, but some with teeth at base of buccal capsule Four families Chabertiidae (most notable, the nodular worms) Deletrocephalidae (in Rhea americanus ) (no need to learn this taxon) Strongylidae (most notable, the large equine strongyles) Syngamidae (most notable, the gapeworms of birds) Typical life-cycle Adults produce unembryonated eggs that pass out with feces Embryonate rapidly in environment Most genera L1 hatches from egg and free-living until the L3 stage;
(Typical life-cycle Adults; produce; unembryonated eggs that pass out with feces Embryonate rapidly in environment) (Species; have; large, complex buccal capsules) Context(Species have,List([209, 221))):(larvae; are; only infective) (unembryonated eggs; pass out; ) (corona radiata; is; a series of leaf-like structures) (Most genera L1; hatches; from egg and free-living) (leaf-like structures; surrounding; mouth)
Species have,List([209, 221))
Typical life-cycle Adults Species larvae unembryonated eggs corona radiata Most genera L1 leaf-like structures
produce have are pass out is hatches surrounding
unembryonated eggs that pass out with feces Embryonate rapidly in environment
large, complex buccal capsules
only infective
a series of leaf-like structures
from egg and free-living
mouth