Monogeneans are important pathogenic parasites of captured captive fishes and .. characteristic of the Class Monogenea, but do present an operculum that. members of the flatworm phylum Platyhelminthes, class Monogenea. Monogenea are small parasitic flatworms mainly found on skin or gills. Major Classes – will consider each in detail: 1. Class Trematoda a. Subclass Aspidobothrea b. Subclass Digenea. 2. Class Monogenea. 3. Class Cestoidea.

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The brain consists of a pair of ganglia in the head region, from which two or three pairs of nerve cords run down the length of the body. From Wikipedia, the free encyclopedia.

Platyhelminthes – flat worms, flukes, tape worms, etc.

Oviparous varieties release eggs into the water. And, those are ONLY light sensitive, they do not actually see. The intermediate host can be a vertebrate or invertebrate according to species. The larva, called a miricidium hatches and enters the body of a snail. Articles monogebea additional references from March All articles needing additional references Articles with ‘species’ microformats.

They are ribbon-like, segmented creatures living in the intestines of their vertebrate hosts. By using this site, you agree to the Terms of Use and Privacy Policy. The eggs hatch in water. While some species live in moist, dark areas on land, most live at the bottom of marine water.


A fluke must live in two or more hosts during its lifetime because its developmental needs are different than its adult needs. Behind the scolex the body is formed of segments proglottidsso the oldest segments are at the posterior end. Flatworms – Class Trematoda Commonly known as flukes, there monogeea over 6, species of flatworm in this class. They are internal parasites of molluscs and clsase. They have no blood or circulatory system. The Monogenea are mainly ectoparasites of mpnogenea and have a simple life-cycle involving only one host; whereas the Trematoda are mainly endoparasitic and have a more complicated life-cycle involving more than one host.

Within the snail’s body cavity it grows into a large sac called a sporocystand this then hatches into a further larval stage called the redia.

Monogenea – Wikipedia

Trematodes have a large variation of forms throughout their life cycles. Trematodes of the Schistomatidae family have separate sexes unusual for Platyhelminthes.

They range in size from less than one millimetre to over one metre in length. Botulus microporusa giant digenean monogebea from the intestine of a lancetfish. Additional Topics Flatworms – Class Turbellaria Containing the most primitive flatworms, the class Turbellaria consists of nine orders and a total of about 3, species, most of which are free-living.


Please help improve this article by adding citations to reliable sources. I know I am Commenting also, but I have a good excuse. Having no mouth or gut, they receive their nourishme….

Flatworms – Class Turbellaria, Class Monogenea, Class Trematoda, Class Cestoidea

Internally the worm has a complex, branching gut that courses nearly the full length of the body. They differ in two main characteristics. Then go to the site HxD Editor and use the search bar and type this key: It must attach to… Read More In flatworm Monogenea.

They usually have a recognizable head, which houses gravity and light-receptive casse, and eye spots. Turbellaria, Monogenea, Trematoda, and Cestoidea. The flukes can be classified into two groups, on the basis of the system which they infect in the vertebrate host. Most flatworm species live in fresh and marine waters, although some live on land. Planaria monogeena no skeletal or respiratory systems. Commonly known as flukes, there are over 6, species of flatworm in this class. It includes two groups of parasitic flatwormsknown as flukes.

They are touch and chemical receptors. I am working on a science project.