Neha Patil

Heteronemertea

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Kingdom  Animalia
Phylum  Nemertea
Rank  Order
Scientific name  Heteronemertea
Higher classification  Anopla
Heteronemertea wwwboldsystemsorgpicsw300NORGE11422B136752
Similar  Ribbon worms, Anopla, Lineus, Hoplonemertea, Enopla

Lineus viridis nemertea heteronemertea feeding on paranais litoralis annelida clitellata


Heteronemertea is a monophyletic order of about 500 species of nemertean worm. It contains genera such as Lineus and Cerebratulus, and includes the largest and most muscular nemerteans.

Contents

Almost all heteronemerteans have three primary body-wall muscle strata: an outer longitudinal, a middle circular, and an inner longitudinal. The lateral nerve cords are outside the circular muscle, as in palaeonemerteans, but separated from the epidermis by the usually well-developed outer longitudinal muscle.

Taxonomy

Families within the order Heteronemertea include:

  • Baseodiscidae
  • Cerebratulidae
  • Gorgonorhynchidae
  • Lineidae
  • Mixolineidae
  • Panorhynchidae
  • Poliopsiidae
  • Polybrachiorhynchidae
  • Pussylineidae
  • Riseriellidae
  • Valenciniidae
  • References

    Heteronemertea Wikipedia


    Similar Topics
    Anopla
    Enopla
    Lineus
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