The Echinostomida are an order of flatworms, belonging to the large group Digenea.
Apart from the suborders listed, the superfamily and the family Pachytrematidae are also placed here as more basal taxa incertae sedis.
The adult inhabits the bile ducts of herbivorous mammals or humans. The immature eggs are passed in the faeces. The eggs enter the water, and hatch into a miracidium larva within 2 weeks. The larvae seek out the snail Lymnaea trunculata, and will die if they fail to find one in 24 hours. The miracidium penetrates the soft tissues of the snail, where it metamorphoses into a sporocyst. The final hosts are infected by ingestion of raw vegetation or water containing enc ysted metacercaria.
The Order Echinostomida is further organized into finer groupings including:
- Suborder (3): Cyclocoelata · Echinostomata · Paramphistomata
- Family (30): Achillurbaniidae · Balfouriidae · Brumptidae · Brumptiidae · Campululidae · Cathaemasiidae · Cladorchiidae · Cyclocoelidae · Echinostomatidae · Fasciolidae · Gastrodiscidae · Gastrothylacidae · Haploporidae · Haplosplanchnidae · Heronimidae · Megaperidae · Mesometridae · Microscaphidiidae · Notocotylidae · Nudacotylidae · Ommatobrephidae · Opisthotrematidae · Orchipedidae · Paramphistomatidae · Philophthalmidae · Pronocephalidae · Psilostomatidae · Rhabdiopoeidae · Rhopaliidae · Saakotrematidae
- Species: ZipcodeZoo has pages for 438 species and subspecies in the Order Echinostomida.
The Cyclocoelidae are a family of parasitic flatworms. They are placed in the monotypic suborder Cyclocoelata of the order Echinostomida. [more]
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]
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]
More info about the Family Saakotrematidae may be found here.
- The text on this page is licensed under the GNU Free Documentation License. It includes material from Wikipedia retrieved Wednesday, April 25, 2012.
- Photographs on this page are copyrighted by individual photographers, and individual copyrights apply.
- The technology underlying this page, including the controls behind Keep Exploring, is owned by the BayScience Foundation. All rights are reserved.