What species belong to trematodes?
Trematoda (Flukes) Trematodes are flatworms with female and male reproductive organs in the same individual, and with an incomplete digestive tract. Trematodes significant for dogs belong to the Digenean subclass with a mollusk intermediate host mandatory in the life cycle.
Is Trematoda a class example?
Digenea
LeucochloridiumSchistosomatidaeAspidogastreaAlaria
Flukes/Lower classifications
How many species of Trematoda are there?
18,000 species
There are over 18,000 species of Trematoda found throughout the world.
What are the characteristics of Trematoda?
Trematodes are flattened oval or worm-like animals, usually no more than a few centimetres in length, although species as small as 1 millimetre (0.039 in) are known. Their most distinctive external feature is the presence of two suckers, one close to the mouth, and the other on the underside of the animal.
What is the habitat of Trematoda?
Habitat: The larvae of human blood flukes live in freshwater snails. The adults live in veins in the abdomens of mammals such as rodents, dogs, cattle, baboons, and humans. Diet: Human blood flukes feed on blood in the abdominal veins of their hosts.
What are the characteristics of trematoda?
What is the habitat of most of the class trematoda?
habitat. This species is generally found in the gravid (pregnant) ovaries and occasionally in mature testes of the buffalo fish (Ictiobus species). In some cases, the worm can extend several inches outside the host organism through the fish’s genital opening.
What are the characteristics of cestoda?
Cestodes are long, flat, ribbon-like organisms commonly called tapeworms. The head, or scolex, has one or more hooked suckers for firm attachment to the host. Behind the head is the neck which is the growing region. The body consists of segments, each containing reproductive organs.
How many species of Trematoda have been described?
Around 9000 species have been described. Their body is covered with a tegument, a peculiar kind of epidermal arrangement in which the main cell bodies are deep, separated from the cytoplasm that lies next to the exterior by a layer of muscle (but connected to the exterior layer by cellular processes.
What kind of body does a trematode have?
Trematodes are also known as flukes. In humans flukes may be found in a variety of organs including the intestine, lungs, and liver. Trematodes are flat and leaf like with bilaterally symmetrical body. They are all hermaphrodites except Schistosoma species.
What kind of host does a Trematoda need?
The phylum Platyhelminthes contains the class Trematoda, more commonly known as the trematodes. Most of the common zoonotic trematodes are digenetic, which means these worms require a minimum of two hosts to develop into the adult stage (Nithiuthai et al., 2004 ).
What makes a Trematoda different from other flatworms?
The genus Schistosoma belongs to the class of Trematoda (flukes), phylum of Platyhelminthes (flatworms). They differ from other human flukes by: (i) having separate sexes; (ii) living in blood vessels; (iii) having non-operculated eggs; and (iv) lacking an encysted metacercarial stage.
