Biology 625
Fall semester lecture note outline

Updated: 24 September 1999

The text below simply represents a crude lecture outline of one of the topics covered in class. It is not meant to substitute for attending lectures or ignoring the textbook. Additional material, including line drawings, kodachromes, and more extensive information on life-cycles and basic biology, will be supplied in the lectures.

Topic #17. Basic taxonomy of parasitic members of the Phylum Nematoda

Class: Enoplea (=Adenophorea; =Aphasmidea)

  1. General characteristics of the parasitic species within the Enoplea
    1. with 5 esophageal glands
    2. generally with caudal and hypodermal glands
    3. phasmids absent
    4. excretory system formed of single, ventral, glandular cells or may be entirely absent
  2. taxonomy
    1. Order: Trichurida
      1. Family: Trichuridae
      2. Family: Capillariidae
      3. Family: Trichinellidae
    2. Order: Dioctophymatida
      1. Family: Dioctophymatidae
      2. Family: Soboliphymatidae (one genus; no need to know this taxon)
    3. Order: Muspiceida (no need to know this order)
    4. Order: Mermithida

Class: Rhabditea (5 subclasses; only the subclass Rhabditia (=Phasmidea; =Secernentea) will be discussed)

  1. General characteristics of the parasitic species within Rhabditia
    1. with 3 esophageal glands
    2. generally without caudal and hypodermal glands
    3. phasmids present
    4. excretory system with 1-2 lateral canals, with or without associated glandular cells
  2. taxonomy
    1. Order: Rhabditida (2 families total)
      1. Family: Rhabditidae (no need to learn this family)
      2. Family: Rhabdiasidae
      3. Family: Strongyloididae
    2. Order: Drilonematida (5 families total; no need to learn this)
    3. Order: Rhigonematida (2 superfamilies total; no need to learn this)
    4. Order: Strongylida (15 families total)
      1. Superfamily: Diaphanocephaloidea (2 genera and over 30 species in reptiles; no need to learn this taxon)
      2. Superfamily: Ancylostomoidea (hookworms)
      3. Superfamily: Strongyloidea (strongilids)
      4. Superfamily: Trichostrongyloidea (trichostrongylids)
      5. Superfamily: Metastrongyloidea (lungworms)
    5. Order: Ascaridida (roundworms; 14 families total)
      1. Superfamily: Ascaridoidea
        1. Family: Anisakidae
        2. Family: Ascarididae
      2. Superfamily: Cosmocercoidea (3 families; no need to learn)
      3. Superfamily: Heterakoidea
        1. Family: Heterakidae
        2. Family: Ascaridiidae
      4. Superfamily: Seuratoidea (3 families; no need to learn)
      5. Superfamily: Subuluroidea (2 families; no need to learn)
    6. Order: Oxyurida (pinworms; 8 families total)
      1. Family: Oxyuridae
      2. Family: Thelastomatidae
    7. Order: Spirurida (spiuroids)
      1. Suborder: Camallanina (2 superfamilies and 7 families)
        1. Superfamily: Camallanoidea
        2. Superfamily: Dracunculoidea
      2. Suborder: Spirurina (9 superfamilies and 20 families)
        1. Superfamily: Gnathostomatoideaa
        2. Superfamily: Physalopteroidea
        3. Superfamily: Rictularioidea (no need to learn taxon)
        4. Superfamily: Thelazioidea
        5. Superfamily: Spiruroidea
        6. Superfamily: Habronematoidea
        7. Superfamily: Acuariodea (no need to learn taxon)
        8. Superfamily: Aproctoidea (no need to lerarn taxon)
        9. Superfamily: Diplotriaenoidea (no need to learn taxon)
        10. Superfamily: Filarioidea

Good reviews on the nematodes include the following references:

Anderson, RC. 1992. Nematode parasites of Vertebrates. Their Development and Transmission. CAB International, University Press, Cambridge. 578 pp.

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