nematode, nematode worm, roundworm
['swab, swob, mop', 'feather boa, boa', 'night snake, Hypsiglena torquata', 'boa constrictor, Constrictor constrictor', 'horned viper, cerastes, sand viper, horned asp, Cerastes cornutus', 'electric ray, crampfish, numbfish, torpedo', 'strainer']