PHYLUM NEMATA

CLASS: ADENOPHOREA (NO PHASMIDS)

• ORDER: DORYLAIMIDA

  • DORYLAIMOID ESOPHAGUS (DRAWING)

    ODONTOSTYLET (DRAWING), (PHOTO)

    PLANT PARASITES

    VIRUS TRANSMITTERS

  EXAMPLE: XIPHINEMA INDEX

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  ORDER: STICHOSOMIDA

  • STICHOSOME ESOPHAGUS (DRAWING), (PHOTO)
  • VERTEBRATE AND INVERTEBRATE PARASITES

EXAMPLES:

• TRICHURIS TRICHIURA

  TRICHINELLA SPIRALIS

  ROMANOMERMIS CULICIVORAX

CLASS: SECERNENTEA (PHASMIDS)

• ORDER: RHABDITIDA

  • RHABDITOID ESOPHAGUS (DRAWING), (PHOTO 1), (PHOTO 2)
  • BACTERIAL FEEDERS
  • INVERTEBRATE AND VERTEBRATE PARASITES

EXAMPLES:

• CAENORHABDITIS ELEGANS

  STEINERNEMA AND HETERORHABDITIS

  STRONGYLOIDES STERCORALIS

  ENTEROBIUS VERMICULARIS

  HETERAKIS GALLINARUM

ORDER: STRONGYLIDA

• CHARACTERISTIC STOMA (PHOTO)
• CHARACTERISTIC BURSA (DRAWING), (PHOTO)
• VERTEBRATE PARASITES

EXAMPLES:

• HOOKWORMS

• HAEMONCHUS CONTORTUS

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ORDER: ASCARIDIDA

• CHARACTERISTIC LIPS (DRAWING), (PHOTO 1),
• (PHOTO 2)
  
• CHARACTERISTIC EGGS (PHOTO)
• VERTEBRATE PARASITES

EXAMPLE: ASCARIDS

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ORDER: SPIRURIDA

• CHARACTERISTIC MICROFILARIA (DRAWING), (PHOTO)
• TWO LIPS
• ARTHROPODS ARE INTERMEDIATE HOSTS (VECTORS)
• VERTEBRATES ARE DEFINITIVE HOSTS

EXAMPLES:

• DRACUNCULUS MEDINENSIS

  FILARIOIDEA

  • WUCHERERIA BANCROFTI
  • ONCHOCERCA VOLVULUS
  • LOA LOA
  • DIROFILARIA IMMITIS

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ORDER: TYLENCHIDA

• TYLENCHOID ESOPHAGUS (DRAWING), (PHOTO)
• STOMATOSTYLET (DRAWING), (PHOTO)
• FUNGAL FEEDERS, PLANT AND INSECT PARASITES

EXAMPLES:

• HETERODERA SCHACHTII

  MELOIDOGYNE INCOGNITA

  RHADINAPHELENCHUS COCOPHILUS

  SPHAERULARIA BOMBI

SELECTED WWW SITES: