Title: Phylum Platyhelminthes | Biology for Majors II
Headings: Phylum Platyhelminthes
Phylum Platyhelminthes
Learning Outcomes
Physiological Processes of Flatworms
Diversity of Flatworms
In Summary: Phylum Platyhelminthes
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Content: Figure 2. Phylum Platyhelminthes is divided into four classes. ( a) Class Turbellaria includes the Bedford’s flatworm ( Pseudobiceros bedfordi ), which is about 8–10 cm in length. ( b) The parasitic class Monogenea includes Dactylogyrus spp. Dactylogyrus, commonly called a gill fluke, is about 0.2 mm in length and has two anchors, indicated by arrows, that it uses to latch onto the gills of host fish. ( c) The Trematoda class includes Fascioloides magna (right) and Fasciaola hepatica (two specimens of left, also known as the common liver fluke). ( d) Class Cestoda includes tapeworms such as this Taenia saginata . T. saginata, which infects both cattle and humans, can reach 4–10 meters in length; the specimen shown here is about 4 meters. ( credit a: