Cestodes

Organism	Intermediate hosts	Distribution	Notes
Pseudophyllideans
Diphyllobothrium latum	Cyclops or Diaptomus microcrustacean followed by freshwater fish	Scandinavia (related to smoked/pickled fish), Siberia, Russia, Japan, Chile, and Uganda	largest human tapeworm, up to 10 m
Spirometra
Sparganum
Intestinal Cyclophyllideans
Dipylidium caninum
Hymenolepis diminuta
Hymenolepis nana	none; only in humans
Taenia saginata	cows	worldwide, highest in Africa and Asia
Taenia solium	pigs (and humans)	worldwide, highest in Mexico, Central/South America, Southwest Asia, and Africa	humans are intermediate (cysticercosis) and definitive (taeniasis) hosts
Tissue Cyclophyllideans
Echinococcus granulosus	herbivores (sheep, goats, cattle, camels, and cervids)
Echinococcus multilocularis
Taenia solium	pigs (and humans)	worldwide, highest in Mexico, Central/South America, Southwest Asia, and Africa
Taenia multiceps
Taenia serialis