| helminth, parasitic worm; woodworm; acanthocephalan, spiny-headed worm; arrowworm, chaetognath; flatworm, platyhelminth; ribbon worm, nemertean, nemertine, proboscis worm; beard worm, pogonophoran; nematode, nematode worm, roundworm; annelid, annelid worm, segmented worm |