Flatworm families

The Taeniidae are a family of tapeworms. It is the largest family representing the order Cyclophyllidea. It includes many species of medical and veterinary importance, as Taenia solium (pork tapeworm), Taenia saginata (beef tapeworm), and Echinococcus granulosus. The Taeniidae are parasites of mammals and many are infectious to humans.

Geoplanidae is a family of flatworms known commonly as land planarians or land flatworms.

Planariidae is a family of freshwater planarians.

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The Anoplocephalidae are a family of tapeworms containing the genera Bertiella, Anoplocephala, Paranoplocephala, Moniezia, and others.

Dugesiidae is a family of freshwater planarians distributed worldwide (except Antarctica). The type genus is Dugesia Girard, 1850.

Diphyllobothriidae is a family of Cestoda (tapeworms). Members of this family are gut parasites of vertebrates. In most species the definitive hosts are marine or aquatic mammals such as cetaceans and pinnipeds, the first intermediate host usually being a crustacean and the second intermediate a fish. The genus Diphyllobothrium is found as an adult in mammals and fish-eating birds, including the domestic cat. The genus Spirometra tends to have a land-dwelling or semi-aquatic vertebrate as its second intermediate host, with the adults usually occurring in felines.

Uteriporidae is a family of Maricola triclads.

Dendrocoelidae is a family of freshwater tricladida flatworms that has a holarctic distribution.

Dactylogyridae is a family of monogenean flatworms.

Davaineidae is the name of a family of tapeworms that includes helminth parasites of vertebrates. Of the 14 genera recorded under this family, Raillietina is the best understood and most extensively studied. Members of the family are characterized by the presence of a crown (rostellum) at the tip of the scolex, and the rostellum is made up of mattock- or hammer-shaped hooks. The rostellum is surrounded by suckers which are armed with spines. These tapeworms are most commonly found in birds, and in few cases, mammals, which are the definitive hosts. Intermediate hosts are small insects such as

Geoplaninae is a subfamily of land planarians endemic to the Neotropical region. Members of this family are sometimes referred to as the Neotropical land planarians. However, one species, Obama nungara has been introduced in Europe.

Macrostomidae is a family of small basal free-living flatworms, and are found in marine, brackish, and freshwater environments. There are currently about 180 named species in this family.

Umagillidae is a family of flatworms belonging to the order Rhabdocoela.

Microcotylidae is a family of polyopisthocotylean monogeneans. All the species in this family are parasitic on fish.

Catenulidae is a family of freshwater catenulid flatworms.

Kenkiidae is a family of freshwater triclads. Their species can be found sporadically in caves, groundwater, and deep lakes in Central Asia, Far East and North America.

Gyrodactylidae is a family of flatworms in the order Gyrodactylidea.

Typhloplanidae is a family of flatworms in the order Rhabdocoela.

Capsalidae is a family of monopisthocotylean monogeneans, which includes about 200 species.

Polycystididae is a family of flatworms belonging to the order Rhabdocoela.

Polystomatidae is a family of flatworms belonging to the class Monogenea.

The Diplectanidae are a family of monopisthocotylean monogeneans. They are all parasitic on the gills of fish (marine or freshwater). Diplectanids are small animals, generally around 1 mm in length. As parasites, they can be extremely numerous, up to several thousand on an individual fish.

Phyllobothriidae is a family of flatworms belonging to the order Phyllobothriidea.

Triaenophoridae is a family of flatworms belonging to the order Bothriocephalidea.

Onchobothriidae is a family of flatworms belonging to the order Onchoproteocephalidea.

Monocotylidae is a family of monogenean flatworms.

Callioplanidae is a family of flatworms belonging to the order Polycladida.

Discocotylidae is a family of flatworms belonging to the order Mazocraeidea.

Dalyelliidae is a family of flatworms belonging to the order Rhabdocoela. The family Dalyelliidae represents the most diverse group within the Dalyellioida. Although a number of species also inhabit marine and brackish waters, the majority are free-living in freshwater environments. Notably, the only known taxon to exhibit symbiotic habits in a broad sense is the Varsoviella.

thumb|250 px|left|Clamps in various genera of Protomicrocotylidae: accessory sclerites (black) are present in Bilaterocotyloides and Protomicrocotyle, and absent in Neomicrocotyle. Clamps are absent in Lethacotyle. thumb|250 px|left|Ratio between clamp surface and body surface in eight families of gastrocotylinean monogeneans: the lowest ratio is in the protomicrocotylids thumb|250 px|left|Posterior part of a protomicrocotylid, showing bilateral asymmetry

Plagiostomidae is a family of marine, free-living flatworms in the order Prolecithophora.

Dilepididae is a family of flatworms belonging to the order Cyclophyllidea.

Diclybothriidae is a family of monogeneans in the order Diclybothriidea.

Chimaericolidae is a family of monogenean parasites. The family was named by Brinkmann in 1942.

Diclidophoridae is a family of monogeneans within the order Mazocraeidea.

Mazocraeidae is a flatworm family in the order Mazocraeidea.

Ancyrocephalidae is a family of monogenean flatworms. The family is considered as a "temporary name" in WorMS but includes a large number of genera and species.

Acanthocotylidae is a family of parasitic flatworms in the class monogenea, a group of mostly external fish parasites.

Mesocestoididae is a family of Cestoda (tapeworms) in the order Cyclophyllidea. Members of this family are gut parasites of small mammals and occasionally birds.

REDIRECT Cyclophyllidea

Ancylodiscoididae is a family of parasitic flatworms belonging to the order Dactylogyridea.

Hexabothriidae is a family of monogenean parasites. The family name was proposed by Emmett W. Price in 1942. The family includes 14-16 genera according to authors and about 60 species; all are parasitic on the gills of chondrichthyan fishes (rays, sharks and chimaeras).

Proteocephalidae is a diverse family tapeworms with nearly 300 recognized species in 66 genera and 13 subfamilies, whose species are found in every continent. They are mainly parasites of siluriforms and other freshwater fishes, but also parasitize reptiles and amphibians. A typical proteocephalid life cycles include planktonic crustaceans, and small fish as intermediate hosts.

Gastrocotylidae is a family of polyopisthocotylean monogeneans. All the species in this family are parasitic on fish.

Tetrabothriidea is an order of helminths in the class Cestoda. It consists of only one family, Tetrabothriidae. Their hosts are mainly seabirds, the rest being cetaceans and pinnipeds.

Tetraonchidae is a family of flatworms belonging to the order Dactylogyridea.

Meixnerididae is a family of Maricola triclads.

Amphilinidae is a family of parasitic flatworms of the phylum Platyhelminthes. It is the only family in the monotypic order Amphilinidea. Amphilinids are Cestodes, yet differ from true tapeworms (Eucestoda) as their bodies are unsegmented and not divided into proglottids. "Amphilinids are large worms which have a flattened leaf-like body. Only 8 amphilinid species are known." "The adults are hermaphroditic. A muscular proboscis is located at the anterior end, and is sometimes very weakly developed or absent." They live in the body cavities of freshwater turtles and teleost fish as adults, and

Calceostomatidae is a family of flatworms belonging to the order Dactylogyridea.

Diplozoidae is a family of monogeneans in the order Mazocraeidea. In all species of this family, the bodies of the two hermaphroditic members of a couple are permanently fused for life. These monogeneans are parasitic on the gills of freshwater fish.

Megaperidae is a family of flatworms belonging to the order Plagiorchiida.