Project

Flatworms

  • 94 Members
  • 287 Sightings
  • 0 Posts

The flatworms, known as Platyhelminthes are a phylum of fascinating, simple bilaterian, unsegmented, soft-bodied invertebrate animals. Unlike other bilaterians, they have no body cavity, and no specialized circulatory and respiratory organs, which restricts them to having flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. The digestive cavity has only one opening for both the ingestion and expulsions of undigested wastes) -this means that food cannot be processed continuously. Platyhelminthes are divided into Turbellaria, which are mostly nonparasitic animals such as planarians, and three entirely parasitic groups: Cestoda, Trematoda and Monogenea. Free-living flatworms are mostly predators, and live in water or in shaded, humid terrestrial environments such as leaf litter. We are fortunate to have as a member of BowerBird, Dr Leigh Winsor from the Jame Cook University at Townsville who is a free-living flatworm expert. Leigh is most keen for members to find and upload images of flatworms. He would also like from time to time for members to collected into alcohol flatworms they find which will be used in his DNA analysis of this difficult group of animals.

  • John Eichler described a sighting

    Sighting Damaged marine flatworm, possibly Thysanozoon sp. (name not available on BB)

    2 votes
    1 faves
    1 ids
    2 notes
    0 disc.
    Sighted 19 Apr 2018
    John Eichler 11 June 2018
    Tagged With reply
    John Eichler says

    Hi Leigh, thanks for this information and confirming my tentative ID.

    0 votes
    0
  • Dr Leigh Winsor described a sighting

    Sighting Damaged marine flatworm, possibly Thysanozoon sp. (name not available on BB)

    2 votes
    1 faves
    1 ids
    2 notes
    0 disc.
    Sighted 19 Apr 2018
    Dr Leigh Winsor 10 June 2018
    Tagged With thysanozoon sp.
    Dr Leigh Winsor says

    I agree with John that this appears to be a species of Thysanozoon. According to Newman and Cannon (2003), members of the genus are found circum-globally in warm seas, though I would not regard Western Port Bay as being particularly warm! The genus is in need of a review.

    0 votes
    0
  • Dr Leigh Winsor identified a sighting

    Sighting Damaged marine flatworm, possibly Thysanozoon sp. (name not available on BB)

    2 votes
    1 faves
    1 ids
    2 notes
    0 disc.
    Sighted 19 Apr 2018
    Dr Leigh Winsor 10 June 2018
    Polycladida
    (order)
    Taxonomy: Animalia: Platyhelminthes: Rhabditophora: Polycladida
    0 votes
    0
  • John Eichler added a sighting

    Damaged marine flatworm, possibly Thysanozoon sp. (name not available on BB)

    2 votes
    1 favourites
    1
    2
    0
    Sighted 19 Apr 2018
    2B Grossard Point Rd, Ventnor VIC 3922, Australia

    Projects

  • Reiner Richter identified a sighting

    Sighting Flame-Patterned Flatworm

    0 votes
    0 faves
    1 ids
    2 notes
    0 disc.
    Sighted 5 Dec 2015
    Reiner Richter 10 May 2018
    Seriata
    (order)
    Taxonomy: Animalia: Platyhelminthes: Turbellaria: Seriata
    0 votes
    0
  • Reiner Richter identified a sighting

    Sighting Swift Flatworm

    0 votes
    0 faves
    1 ids
    2 notes
    0 disc.
    Sighted 5 Dec 2015
    Reiner Richter 10 May 2018
    Seriata
    (order)
    Taxonomy: Animalia: Platyhelminthes: Turbellaria: Seriata
    0 votes
    0
  • Reiner Richter identified a sighting

    Sighting Another Mottled Tassie Flatworm

    0 votes
    0 faves
    1 ids
    1 notes
    0 disc.
    Sighted 5 Nov 2015
    Reiner Richter 10 May 2018
    Seriata
    (order)
    Taxonomy: Animalia: Platyhelminthes: Turbellaria: Seriata
    0 votes
    0
  • Reiner Richter identified a sighting

    Sighting Beige Striped Flatworm

    0 votes
    0 faves
    1 ids
    1 notes
    0 disc.
    Sighted 7 Nov 2015
    Reiner Richter 10 May 2018
    Seriata
    (order)
    Taxonomy: Animalia: Platyhelminthes: Turbellaria: Seriata
    0 votes
    0
  • Reiner Richter identified a sighting

    Sighting Orange-Red Nemertean Worm

    0 votes
    0 faves
    1 ids
    1 notes
    0 disc.
    Sighted 7 Nov 2015
    Reiner Richter 10 May 2018
    Nemertea
    (phylum)
    Taxonomy: Animalia: Nemertea
    0 votes
    0
  • Reiner Richter identified a sighting

    Sighting Dark Mottled Flatworm

    0 votes
    0 faves
    1 ids
    1 notes
    0 disc.
    Sighted 8 Nov 2015
    Reiner Richter 10 May 2018
    Seriata
    (order)
    Taxonomy: Animalia: Platyhelminthes: Turbellaria: Seriata
    0 votes
    0