Porrocaecum crassum

are endoparasites of

• Global Biotic Interactions: Criodrilus lacuum Hoffmeister 1845
• Global Biotic Interactions: Anas platyrhynchos Linnaeus 1758 (Common Mallard)
• Global Biotic Interactions: Dendrobaena mariupoliensis
• Global Biotic Interactions: Dendrobaena schmidti (Michaelsen 1907)
• Global Biotic Interactions: Eiseniella tetraedra (Savigny 1826) (Squaretail worm)

have host

• Global Biotic Interactions: Dendrocygna bicolor (Vieillot 1816) (Fulvous Duck)
• Global Biotic Interactions: Anas fulvigula Ridgway 1874 (Florida duck)
• Global Biotic Interactions: Dendrocygna autumnalis (Linnaeus 1758) (Black-bellied Whistling Duck)
• Global Biotic Interactions: Anas fulvigula Ridgway 1874 (Florida duck)
• Global Biotic Interactions: Anas fulvigula Ridgway 1874 (Florida duck)

number of records in gbif

• GBIF data coverage: 20

parasitize

• Global Biotic Interactions: Dendrodrilus rubidus subrubicundus
• Global Biotic Interactions: Dendrobaena schmidti (Michaelsen 1907)
• Global Biotic Interactions: Anas superciliosa Gmelin & JF 1789 (Grey Duck)
• Global Biotic Interactions: Allolobophora dubiosa (Örley 1881)
• Global Biotic Interactions: Criodrilus lacuum Hoffmeister 1845