Class - Secernentea

(Parasitic Roundworms)

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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