Linked from
The 12 pages that link to Flatworm, each with the reason it gives.
NematodeCompared with: Flatworms have flattened bodies, while nematodes are typically cylindrical.
LophotrochozoaBroader topic: Flatworms add both free-living and parasitic body forms to the clade.
NematodaCompared with: Flatworms lack the complete digestive tract characteristic of nematodes.
CestodaNarrower topic: Cestoda is one of the major parasitic groups within this phylum.
TrematodaNarrower topic: Trematodes are one parasitic lineage within this broader flatworm phylum.