Ancylostoma caninum is a pathogenic hookworm of domestic dogs and free-ranging canids, so called because its buccal capsule is bent dorsally in the form of a "hook."
Angiostrongylus vasorum occur in dogs, foxes, coyotes and lynx. So far in Canada, the parasite is only found in the Avalon Peninsula of Newfoundland. It's also found in South Ameri...
Baylisascaris procyonis is a small-intestinal nematode of raccoons in North and Central America, including Canada
The nematode Capillaria plica occurs in the urinary bladder of dogs, free-ranging carnivores, and rarely cats, worldwide, likely including Canada.
Dioctophyma renale occurs in dogs, foxes, mink, ferrets, otters, cats (on occasion), pigs, horses, cattle and people.
The nematode Dirofilaria immitis (heartworm) occurs in domestic dogs and less often in cats, and in free-ranging canids and other carnivores, in many regions of the world.
Diagnosed infections of Dracunculus insignis in dogs living in Canada seems to be very rare.
Eucoleus aerophila is a tracheal worm that infects primarily foxes and occasionally other free-ranging carnivores, dogs, cats and people.
Adults of the nematode Oslerus (Filaroides) osleri live in nodules beneath the tracheal mucosa of dogs in many parts of the world, including Canada, and in coyotes in North Americ...
An overview of several less commonly seen lungworms in dogs
Physaloptera spp. are spiruroid stomach nematodes that occur primarily in cats, wild felids and occasionally dogs in North America, including Canada, as well as in South America, C...
The nematode Strongyloides stercoralis is primarily a parasite of people, but also occurs in dogs and sometimes cats.
Toxascaris leonina is an ascarid nematode of the small intestine of domestic dogs and cats and free-ranging canids and felids.
Toxacara canis is an ascarid nematodes of the small intestine of dogs and free-ranging canids. It occurs around the world, including Canada, although in the northern regions of th...
Adults of the nematode Trichuris vulpis live in the large intestine of dogs and rarely cats. The life cycle is direct and the infective stage is a larvated egg.
Adults of the nematode Uncinaria stenocephala live in the small intestine of dogs.