Worms
| acanthocephalan |
acorn worm |
| annelid |
arrow worm |
| ascarid |
bamboo worm |
| beard worm |
bladder worm |
| blood fluke |
bloodworm |
| bootlace worm |
brandling |
| bristle worm |
catworm |
| chaetognath |
dungworm |
| earthworm |
eelworm |
| eye worm |
fan worm |
| feather duster (worm) |
filaria |
| fireworm |
flatworm |
| fluke |
gapeworm |
| gordian worm |
Guinea worm |
| hairworm |
heartworm |
| helminth |
hookworm |
| horsehair worm |
horseshoe worm |
| kidney worm |
leech |
| liver fluke |
lobworm |
| lugworm |
lungworm |
| mesozoan |
mopane worm |
| nematode (worm) |
nemertean |
| nereid |
oligochaete |
| paddle worm |
palolo worm |
| parchment worm |
peacock worm |
| peanut worm |
phoronid |
| pinworm |
platyhelminth |
| pognophoran |
polychaete |
| pot worm |
proboscis worm |
| pterobranch |
ragworm |
| rainworm |
redworm |
| rhombozoan |
ribbon worm |
| roundworm |
scale worm |
| sea mouse |
serpulid |
| sipunculid |
spiny-headed worm |
| spoonworm |
straw worm |
| strongyle |
tapeworm |
| thorny-headed worm |
threadworm |
| tongue worm |
toxocara |
| trematode |
trichina |
| tube worm |
tubifex |
| vinegar eel |
whipworm |
| white worm |