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Biology

Notoplana acticola

Kingdom: Animalia

Phylum: Platyhelminthes

Class: Turbellaria

Order: Polycladida

Family: Leptoplanidae

Genus: Notoplana

Species: acticola

Fasciola hepatica

Kingdom: Animalia

Phylum: Platyhelminthes

Class: Trematoda

Order: Echinostomiformes

Family: Fasciolidae

Genus: Fasciola

Species: hepatica

Taenia solium

Empire: Animalia

Phylum: Platyhelminthes

Class: Cestoidea

Order: Cyclophyllidea

Family members: Taeniidae

Genus: Taenia

Varieties: solium

Amphibdella flavolineata

Empire: Animalia

Phylum: Platyhelminthes

Course: Trematoda

Buy: MonopisthocotyleaВ

Family members: Dactylogyridae

Genus: Amphibdella

Species: flavolineata

Entobdella soleae

Kingdom: Animalia

Phylum: Platyhelminthes

Class: Trematoda

Order: Monopisthocotylea

Family: CapsalidaeВ

Genus: Entobdella

Species: soleae

Taenia saginata

Kingdom: Animalia

Phylum: Platyhelminthes

Class: Cestodes

Order: Cyclophyllidea

Family: Taeniidae

Genus: Taenia

Species: saginata

Polystoma integerrimum

Kingdom: Animalia

Phylum: Platyhelminthes

Class: Monogenea

Order: Polystomatoinea

Family: Polystomatidae

Genus: Polystoma

Species: integerrimum

Paragonimus westermani

Kingdom: Animalia

Phylum: Platyhelminthes

Class: Trematoda

Order: Plagiorchiida

Family: Troglotrematidae

Genus: Paragonimus

Species: westermani

Opisthorchis parasiluri

Phylum: Platyhelminthes

Class: Trematoda

Order: Opisthorchiida

Family: Opisthorchiidae

Genus: Opisthorchis

Species: parasiluri

Platyhelminthes(Background Information)

Platyhelminthes (plăt´ēhĕlmĬn´thēz), phylum containing regarding 20, 500 species of soft-bodied, bilaterally shaped, invertebrate pets or animals, commonly referred to as flatworms. You will discover four classes: the free-living, primarily marine class, Turbellaria, and Trematoda, Cestoda, and Monogenea, which can be considerably modified for their solely parasitic living. While the framework of the flatworms marks a significant step in dog evolution, all their origin and relationships inside the group are still controversial.

Anatomy

Flatworms are dorso-ventrally squashed. The epidermis is usually ciliated inside the turbellarians, whilst trematodes and cestodes are covered which has a cuticle. Beneath the outer protecting are two layers of muscle, an outer round layer, and an inner longitudinal part; this agreement permits a great undulating form of locomotion that may be observed in the larger turbellarian types. A saclike digestive cavity, with a sole opening for the outside that serves as both equally mouth and anus, is usually present; inside the simpler forms it is absent or unbranched, but in higher forms this branches to any or all parts of the body. The major sense internal organs, when present, are focused in the head, or front end. Although a primitive neurological net exists in some in the simpler varieties, others have got several neurological cords increasing from a brain along the length of the human body. The latter style of corporation is retained in the nervous devices of higher invertebrates, specifically annelids and arthropods.

The reproductive approach to flatworms is usually characteristically hermaphroditic (i. at the., each individual creates both ova and sperm), and cross-fertilization between people is typical. While trematodes and cestodes shed ova almost consistently, turbellarians demonstrate seasonal reproductive activity and, in addition , screen asexual processing and the capacity to regenerate severed parts of the body.

All besides the simplest flatworms have nephridial tubules, named protonephridia, generally distributed over the body. Such structures incorporate an external beginning and a tubule that branches in house, terminating in many blind, bulb-shaped structures referred to as flame light bulbs, which keep tufts of cilia. That they probably function as excretory and osmoregulatory internal organs.

School Turbellaria

The mostly free-living, primarily carnivorous, flatworms of sophistication Turbellaria are characterized by a soft...

03.09.2019

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