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Monogenea are Platyhelminthes, so are among the lowest invertebrates to possess three embryonic germ layers—endoderm, mesoderm, and ectoderm. In addition, they have a head region that contains concentrated sense organs and nervous tissue (brain). Like all ectoparasites, monogeneans have well-developed attachment structures.
Platyhelminthes (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") [4] is a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates commonly called flatworms or flat worms.
The Turbellaria are one of the traditional sub-divisions of the phylum Platyhelminthes (flatworms), and include all the sub-groups that are not exclusively parasitic.There are about 4,500 species, which range from 1 mm (0.039 in) to large freshwater forms more than 500 mm (20 in) long [3] or terrestrial species like Bipalium kewense which can reach 600 mm (24 in) in length.
Phylum: Platyhelminthes, class: Monogenea, order: Mazocraeidea, family: Microcotylidae, genus: Sparicotyle, species: Sparicotyle chrysophrii. The species was originally described by Van Beneden and Hesse in 1863 under the name Microcotyle chrysophrii and transferred to the genus Sparicotyle by Mamaev in 1984.
Diplozoon paradoxum is a flatworm (platyhelminth) from the class Monogenea. [1] It is found in freshwater fishes in Asia and Europe and known for its complete monogamy. This parasite is commonly found on the gills of European cyprinid fishes. It is usually around 0.7 centimeters long (approximately the size of a fingernail) and has bilateral ...
The variety of male copulatory organs in species of Dactylogyrus. Other characteristics of Dactylogyrus species include the appearance of four eye-spots, 14 marginal hooks (7 pairs), one to two connective bars and two needle-like structures and spindle-shaped dactylogyrid-type seminal vesicles. [5]
Phylum: Platyhelminthes: Class: Monogenea: Order: Mazocraeidea: Family: Diplozoidae Palombi, 1949 [1] Diplozoidae is a family of monogeneans in the order Mazocraeidea ...
Phylum: Platyhelminthes: Class: Monogenea: Subclass: Monopisthocotylea: Order: ... Capsalidea is an order of parasitic flatworms in the class Monogenea. [1 ...