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Class - Secernentea

(Parasitic Roundworms)


Characteristics of Secernentea are:


  • Excretory system is tubular

  • Cuticle is striated in two to four layers; lateral field is present

  • Three esophageal glands; esophageal structure varies

  • Males generally have one testis

  • Caudal alae are common

  • Sensory papillae are cephalic only; may be caudal papillae in males

  • Mostly terrestrial

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