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Platyhelminthes

(Phylum)

Overview

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A phylum of multicellular, acoelomate animals, commonly called flatworms, which are flattened dorsoventrally and are bilaterally symmetrical, and have the epidermis (ectoderm) and gut separated by a solid mass of tissue. They include the free living Turbellaria and the parasitic Monogenea, Trematoda and Cestoda.

Incomplete or absent digestive tract; no body cavity; mostly hermaphroditic. They include free-living and parasitic forms.

Photos

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Taxonomy

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The Phylum Platyhelminthes is a member of the Kingdom Animalia. Here is the complete "parentage" of Platyhelminthes:

The Phylum Platyhelminthes is further organized into finer groupings including:

Families

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Acanthocollaritrematidae

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Acanthocolpidae

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Acanthocotylidae

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Acanthostomatidae

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Acanthostomidae

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Accacoeliidae

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Achillurbaniidae

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Acholadidae

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Acoleidae

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Acrumenidae

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Aculeorhynchidae

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Adelobothriidae

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Aerobiotrematidae

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Albulatrematidae

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Allassogonoporidae

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Allocreadiidae

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Allomicrocotylidae

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Allopyragraphoridae

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Amabiliidae

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Amphicotylidae

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Amphilinidae

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Anchitrematidae

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Anchorophoridae

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Ancyrocephalidae

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Anenterotrematidae

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Angiodictyidae

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Anonymidae

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Anoplocephalidae

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Aphanhysteridae

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Aphanostomidae

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Apidioplanidae

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Areobiotrematidae

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Arnolidae

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Aspidogasteridae

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Aspidogastridae

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Auridistomatidae

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Auridistomidae

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Austramphilinidae

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Aviellidae

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Axinidae

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Azygiidae

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Baicalarctiidae

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Balanobothriidae

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Balanotaeniidae

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Balfouriidae

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Bathycotylidae

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Batrachotrematidae

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Bdellouridae

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Bertiliellidae

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Bipaliidae

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Bivesiculidae

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Bolbocephalodidae

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Boniniidae

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Bothitrematidae

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Bothriocephalidae

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Bothrioplanidae

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Botulidae

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Botulisaccidae

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Brachycoeliidae

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Brachylaimidae

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Brauninidae

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Braunotrematidae

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Brumptidae

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Brumptiidae

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Bucephalidae

Members of the family Bucephalidae are trematode flatworms with no oral sucker, using instead a rhynchus as an adhesive organ at their anterior end. Many are common parasites of freshwater fish. [more]

Byrsophlebidae

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Calceostomatidae

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Callioplanidae

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Callodistomatidae

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Calycodidae

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Campulidae

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Campululidae

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Capingentidae

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Capsalidae

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Carcharodopharyngidae

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Caryophyllaeidae

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Catenotaeniidae

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Catenulidae

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Cathaemasiidae

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Cemocotylidae

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Cephalochlamydidae

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Cephalogonimidae

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Cephaloporidae

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Cercyridae

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Cestoda

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Cestoplanidae

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Chimaericolidae

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Chordariidae

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Chromoplanidae

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Cicerinidae

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Ciliopharyngiellidae

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Cladorchiidae

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Clinostomatidae

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Coelogynoporidae

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Collyriclidae

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Cortrematidae

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Crassicolidae

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Cryptocelidae

Cryptocelidae is a family of flatworms. [more]

Cryptocelididae

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Cryptogonimidae

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Cyathocephalidae

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Cyathocotylidae

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Cyclocoelidae

The Cyclocoelidae are a family of parasitic flatworms. They are placed in the monotypic suborder Cyclocoelata of the order Echinostomida. [more]

Cylindrorchiidae

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Cylindrostomidae

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Cystiplanidae

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Cytocystidae

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Cytocystididae

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Dactylocotylidae

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Dactylogyridae

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Dalyelliidae

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Dasyrhynchidae

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Davaineidae

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Dendrocoelidae

Dendrocoelidae is a family of freshwater tricladida flatworms. [more]

Deropristiidae

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Diascorhynchidae

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Diclidophoridae

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Diclybothriidae

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Dicrocoeliidae

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Dictysarcidae

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Didymozoidae

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Dilepididae

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Dioecocestidae

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Dioecotaeniidae

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Dionchidae

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Diphosthiidae

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Diphyllobothriidae

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Diplectanidae

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Diplocotylidae

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Diplopharyngeatidae

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Diplostomatidae

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Diplostomidae

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Diplozoidae

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Discocelidae

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Discocotylidae

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Disculicepitidae

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Ditrachybothridiidae

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Ditremageniidae

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Dolichomacrostomidae

The Dolichomacrostomidae are a family of small basal free-living flatworms (Macrostomida, Turbellaria, Platyhelminthes), and members of the marine, but also brackish, meiobenthos. The name was coined by Reinhard M. Rieger (1971), who designated the Dolichomacrostomidae as a family within the taxon Macrostomida. There are currently about 40 named species in this family. [more]

Dolichoperidae

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Dugesiidae

Dugesiidae is a family of freshwater Tricladida distributed worldwide (except Antarctica). According to molecular analyses, Dugesiidae is the sister group of land planarians. [more]

Echinobothriidae

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Echinophallidae

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Echinoporidae

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Echinostomatidae

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Ectocotylidae

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Emprosthoparnygidae

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Emprosthopharyngidae

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Enantiidae

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Encyclometridae

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Eucotylidae

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Eumegacetidae

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Euryleptidae

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Eutetrarhynchidae

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Fasciolidae

Fasciolidae is a family of trematodes and includes several veterinary and medical important parasites. Family Fasciolidae is divided into 5 genera. Flukes of the family are localized in liver, gall bladder, and the intestine. The life cycle of fasciolid flukes includes one intermediate host ? freshwater snails from family Lymnaeidae. [more]

Fecampiidae

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Fellodistomatidae

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Fellodistomidae

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Gastrocotylidae

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Gastrodiscidae

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Gastropharyngidae

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Gastrothylacidae

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Gekkonotrematidae

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Geoplanidae

The Family Geoplanidae, common name Land planarians (Platyhelminthes, Tricladida, Geoplanidae) is an understudied but important group of flatworms that belong to the soil ecosystem. [more]

Gilquiniidae

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Gnathorhynchidae

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Gnesiocerotidae

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Gnosonesimidae

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Gorgocephalidae

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Gorgoderidae

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Graffillidae

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Gyliauchenidae

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Gymnophallidae

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Gymnorhynchidae

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Gyrocotylidae

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Gyrodactylidae

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Haematoloechidae

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Halipegidae

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Haplobothriidae

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Haplopharyngidae

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Haploporidae

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Haplosplanchnidae

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Harmotrematidae

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Hasstilesiidae

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Hemiuridae

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Hepatoxylidae

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Heronimidae

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Heteraxinidae

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Heteromicrocotylidae

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Heterophyidae

Heterophyidae is a family of intestinal flukes of the class trematoda. [more]

Hexabothriidae

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Hexostomatidae

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Hirudinellidae

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Homalometridae

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Hoploplanidae

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Hornelliellidae

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Hymenolepididae

Hymenolepididae is family of cyclophyllid tapeworms. The characteristic feature is the small number of testes (one to four). The unilateral and large external seminal vesicle allows for easy recognition. Most species are small, transparent, and easy to study. [more]

Hypoblepharinidae

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Hypotrichinidae

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Isoparorchiidae

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Jubilariidae

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Karkinorhynchidae

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Kenkiidae

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Koinocystididae

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Kytorhynchidae

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Lacistorhynchidae

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Laidlawiidae

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Lampritrematidae

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Laterotrematidae

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Latocestidae

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Lecanicephalidae

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Lecithodendriidae

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Lepocreadiidae

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Leptoplanidae

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Leucochloridiidae

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Leucochloridiomorphidae

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Liolopidae

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Lissorchiidae

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Litobothridae

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Lobatovitelliovariidae

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Loimoidae

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Lytocestidae

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Mabiaramidae

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Macroderidae

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Macroderoididae

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Macrostomidae

The Macrostomidae are a family of small basal free-living flatworms (Macrostomida, Turbellaria, Platyhelminthes), and members of the marine, brackish, freshwater meiobenthos. There are currently about 180 named species in this family. [more]

Macrovalvitrematidae

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Maseniidae

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Mazocraeidae

Mazocraeidae is a flatworms family in the order Mazocraeidea. [more]

Megalonchidae

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Megaperidae

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Meristocotylidae

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Mesocestoididae

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Mesocoeliidae

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Mesometridae

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Mesotretidae

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Microbothriidae

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Microcotylidae

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Microphallidae

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Microscaphidiidae

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Microstomidae

The Microstomidae are a family of small basal free-living flatworms (Macrostomida, Turbellaria, Platyhelminthes), and members of the marine, brackish, freshwater meiobenthos and plankton. There are currently about 40 named species in this family. [more]

Monascidae

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Monocelididae

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Monocotylidae

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Monodhelminthidae

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Monorchiidae

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Monotoplanidae

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Moreauiidae

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Multipeniatidae

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Mustelicolidae

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Nanophyetidae

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Nasitrematidae

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Nematoparataeniidae

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Nematoplanidae

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Nematorhynchidae

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Nematotaeniidae

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Nemertodermidae

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Nemertoplanidae

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Neostrigeidae

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Nexilidae

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Nippotaeniidae

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Notocirridae

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Notocotylidae

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Notoplanidae

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Nudacotylidae

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Ochetosomatidae

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Octolabeidae

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Octotestidae

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Oesophagicolidae

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Ommatobrephidae

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Omphalometridae

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Oncobothriidae

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Opecoelidae

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Ophiodiplostomatidae

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Opisthogeniidae

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Opisthogonimidae

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Opistholebetidae

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Opisthorchiidae

Opisthorchiidae is a family of digeneans, parasitic flatworms. [more]

Opisthotrematidae

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Orchipedidae

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Otobothriidae

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Otomesostomidae

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Otoplanidae

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Ovariopteridae

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Pachypsolidae

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Pachytrematidae

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Parabothriocephalidae

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Paragonimidae

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Paramphistomatidae

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Paramphistomidae

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Paranybeliniidae

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Pelorohelminthidae

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Pericelidae

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Phaenocelidae

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Philophthalmidae

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Phyllobothriidae

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Placorhynchidae

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Plagiorchiidae

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Plagiostomidae

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Planariidae

Planariidae is a family of Tricladida that inhabits the freshwater. [more]

Planoceridae

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Plectanocotylidae

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Plehniidae

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Pleioplanidae

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Pleorchiidae

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Pleurogenidae

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Polycystidae

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Polycystididae

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Polyposthiidae

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Polystomatidae

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Polystyliphoridae

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Procerodidae

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Progynotaeniidae

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Promesostomidae

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Pronocephalidae

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Prorhynchidae

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Prosogonotrematidae

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Prosthiostomidae

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Prosthogonimidae

The Prosthogonimidae are a family of parasitic flatworms. They are part of the huge of the suborder Plagiorchiata in the order Plagiorchiida. The adults of these parasites occur in the bursa of Fabricius, caecum, cloaca, liver, oviduct and sometimes even under the nictitating membrane of mammals and particularly birds. [more]

Proteocephalidae

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Proterodiplostomatidae

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Protogyrodactylidae

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Protomicrocotylidae

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Protomonotresidae

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Protrodiplostomatidae

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Provorticidae

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Psammorhynchidae

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Pseudoceritidae

Pseudocerotidae is a family of flatworms. [more]

Pseudocerotidae

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Pseudodiclidophoridae

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Pseudogrillotiidae

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Pseudostomidae

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Psilostomatidae

The Psilostomatidae are a family of the parasitic flatworm order Echinostomida, wherein they are part of the Echinostomata (one of the larger suborders). They often parasitize aquatic vertebrates as definitive hosts. [more]

Pterastericolidae

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Pterinotrematidae

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Pterobothriidae

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Ptychobothriidae

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Ptychogonimidae

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Pyragraphoridae

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Ratziidae

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Renicolidae

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Retronectidae

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Rhabdiopoeidae

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Rhinoptericolidae

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Rhopaliidae

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Rhynchodemidae

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Rhytidodidae

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Rugogastridae

The Rugogastridae are a taxonomic family of flatworms that consist of a single genus, Rugogaster, with only two species. The rugogastridae are parasites, and infect the rectal glands of various species of sh. The family, genus and two species are characterised by a single row of rugae (transverse thickenings of the body surface), numerous testes, and two caeca. Species of the other three families of Aspidogastrea have a single caecum and either one or two testes. [more]

Saakotrematidae

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Sanguinicolidae

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Schistosomatidae

Schistosomatidae is a family of digenetic trematodes with complex parasitic life cycles. Immature developmental stages of schistosomes are found in molluscs and adults occur in vertebrates. The best studied group, the blood flukes of the genus Schistosoma, infect and cause disease in humans. Other genera which are infective to non-human vertebrates can cause mild rashes in humans. [more]

Schizorhynchidae

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Scleraulophoridae

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Sclerodistomatidae

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Sclerodistomidae

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Scutariellidae

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Solenopharyngidae

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Spathebothriidae

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Sphyranuridae

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Sphyriocephalidae

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Spirorchiidae

Spirorchiidae is a family of digenetic trematodes. They are parasites of turtles. Disease caused by them is commonly called . [more]

Steganodermatidae

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Stenostomidae

Stenostomidae are a family of the flatworm order Catenulida. [more]

Stichocotylidae

Stichocotylidae is a monospecific family of flatworms comprising the single species Stichocotyle nephropis, which is an internal parasite of elasmobranch fish, originally described from the Norway lobster, Nephrops norvegicus, by J. T. Cunningham in 1884. This flatworm is distinguished by a single ventral row of well separated suckers. [more]

Stomylotrematidae

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Strigeidae

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Stylochidae

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Stylochocestidae

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Stylochoplanidae

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Sundanonchidae

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Syncoeliidae

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Taeniidae

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Taenioplanidae

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Telorchiidae

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Temnocephalidae

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Tentaculariidae

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Tetrabothriidae

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Tetracladiidae

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Tetraonchidae

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Tetraonchoididae

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Tetrarhynchobothriidae

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Tetrasteridae

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Thapariellidae

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Theamidae

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Transversotrematidae

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Treptodemidae

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Triaenophoridae

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Trigonostomidae

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Triloculariidae

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Triplotaeniidae

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Troglotrematidae

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Turbellaria

Typhloplanidae

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Typhlorhynchidae

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Tyrrheniellidae

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Udonellidae

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Ulianiniidae

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Umagillidae

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Urastomidae

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Urotrematidae

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Uteriporidae

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Zoogonidae

The Zoogonidae are a family of parasitic flatworms. They are the namesake family of the suborder Zoogonata in the order Plagiorchiida. [more]

At least 15 species and subspecies belong to the Family Zoogonidae.

More info about the Family Zoogonidae may be found here.

Sources

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Last Revised: August 25, 2014
2014/08/25 12:33:41