Toxascaris leonina (Linstow 1902)

are endoparasites of

• Global Biotic Interactions: Canis lupus familiaris
• Global Biotic Interactions: Canis lupus
• Global Biotic Interactions: Vulpes lagopus (Linnaeus 1758) (Arctic Fox)
• Global Biotic Interactions: Felis catus
• Global Biotic Interactions: Muridae

have host

• Global Biotic Interactions: Vulpes vulpes
• Global Biotic Interactions: Vulpes vulpes (Linnaeus 1758) (red fox)
• Global Biotic Interactions: Canis lupus
• Global Biotic Interactions: Canis latrans Say 1823 (American Jackal)
• Global Biotic Interactions: Canis latrans Say 1823 (American Jackal)

parasitize

• Global Biotic Interactions: Vulpes macrotis Merriam 1888 (Desert Fox)
• Global Biotic Interactions: Microtus oeconomus
• Global Biotic Interactions: Vulpes
• Global Biotic Interactions: Canis lupus familiaris
• Global Biotic Interactions: Microtus