What color is polystoma integerrimum?

1. Where is Polystoma Integerrimum found?
2. What are the major external features of polystoma?
3. Where do monogenea live?
4. What do monogeneans feed on?
5. Are Monogenea ectoparasites?
6. Do Monogenea have eyespots?
7. Are monogeneans trematodes?
8. What does the Monogenean worm do to the grouper?
9. How many Monogenea are there?
10. What are the differences between Monogenea and Digenea?
11. Does Monogenea have scolex?
12. What is the common name for Monogenea?
13. Do Capsalids have eye spots?
14. Do Monogenea infect humans?
15. What are the characteristics of cestoda?

Where is Polystoma Integerrimum found?

P. integerrimum inhabits the bladder of a frog or toad where it feeds on blood, mucus and the sloughed cells of its host. Unlike many species of flatworm, the adults are either male or female, with functional testes or ovaries.

What are the major external features of polystoma?

The body of Polystoma integerrimum is leaf-like and dorso-ventrally flattened and measure not more than 3 cm in length. It is attached to its host by opisthaptor. The opisthaptor contains three pairs of suckers, two anchors and six marginal chitinous hooks.

Where do monogenea live?

HABITAT. Many monogeneans live on or in specific hosts, mainly the skin of freshwater and saltwater fishes. Some species live in the bladders of frogs and toads and the bladders or mouths of freshwater turtles. One species lives beneath the eyelids of a hippopotamus.

What do monogeneans feed on?

Introduction. Most monogeneans are browsers that move about freely on the fishs body surface feeding on mucus and epithelial cells of the skin and gills; however, a few adult monogeneans will remain permanently attached to a single site on the host.

Are Monogenea ectoparasites?

Monogeneans are a group of ectoparasitic flatworms commonly found on the skin, gills, or fins of fish. They have a direct lifecycle and do not require an intermediate host. Adults are hermaphrodites, meaning they have both male and female reproductive structures.

Do Monogenea have eyespots?

Note the lack of eyespots (left, 100x magnification; right, 40x magnification). Dactylogyrids usually prefer the gills as a feeding and attachment site (Figure 4) and are primarily found on freshwater fishes belonging to the cyprinid family (danios, rasboras, barbs, goldfish, koi, freshwater "sharks," etc.).

Are monogeneans trematodes?

Monogenea are in the order Platyhelminthes. They are not trematodes but may incorrectly be referred to as “monogenean trematodes,” even by pathologists who know better. Monogenea are characterized by the opisthaptor, the posterior holdfast organ.

What does the Monogenean worm do to the grouper?

The Grouper and monogean worm have a parasitic relationship because of the role of the worm (It attaches itself to any underwater organism and feeds on the flesh of the gills, and cells, and including it feeds on the insides of the organism when it feeds enough to go inside of the organism.

How many Monogenea are there?

There are approximately 5000 species of monogeneans described worldwide, with 318 species in 125 genera and 28 families listed in the most recent checklist of species found in Australia.

What are the differences between Monogenea and Digenea?

The name "digenea" refers to the alternation of generations between sexually-reproducing adult and asexually reproducing larval stages. This contrasts with the Monogenea, which reproduce sexually only. Adults produce an egg. Subsequent development follows myriad routes, depending on the species involved.

Does Monogenea have scolex?

Some consist of one long segment; others have a definite head, followed by a series of identical segments called proglottids. The head, or scolex, bears suckers and often hooks, which are used for attachment to the host. The body covering is a tough cuticle, through which food is absorbed.

What is the common name for Monogenea?

The phylum Platyhelminthes (flatworms) is comprised of parasitic worms characterized mainly by their flattened, bilaterally symmetrical body.

Do Capsalids have eye spots?

Many also have two circular attachment organs at their anterior ends. They also have two pairs of eye spots, but these are not easily discerned in adults. As capsalids reach maturity, their bodies tend to spread out to accommodate their extensive digestive system.

Do Monogenea infect humans?

Significance to humans

In the wild, the number of monogeneans living on an individual host is generally low, and infestations of these parasites do not usually cause disease.

What are the characteristics of cestoda?

Cestodes, commonly called tapeworms, are the taxonomic class of Cestoda, which are parasitic worms. They have a tape-like and segmented body. These animals are hermaphroditic, lack a digestive tract, and do not have a body cavity.