Lab 4-Diphyllobothrium Flashcards
Phylum of Diphyllobothrium
Platyhelminthes
Class of Diphyllobothrium
Cestoidea
Order of Diphyllobothrium
Pseudophyllidea
Where do adults live?
Inside intestine of fish-eating bird or mammal
How are eggs passed?
through feces
Are eggs embryonated when they pass?
No
What hatches out of egg?
Coracidium
Is there a free-living stage?
yes
What is the free–living stage called?
Coracidium
What is the first intermediate host of this parasite?
Copepod
Where does the oncosphere stay in copepod?
hemocele
Where does procercoid stay in second intermediate host (fish)?
Muscle of gut
Do plerocercoids have reproductive organs?
Not yet
What is a bothrium?
muscular groove that provides attachment by pinching the host’s intestine
Do proglottids overlap?
Yes