flatworm, platyhelminth
['maraca', 'Gila monster, Heloderma suspectum', 'night snake, Hypsiglena torquata', 'alp', 'horned viper, cerastes, sand viper, horned asp, Cerastes cornutus', 'Indian cobra, Naja naja', 'ringneck snake, ring-necked snake, ring snake']