Taeniid Cestodes

Question 1

Answer 1

Taeniid type egg (Taenia/Echinococcus)
*thick radially straited shell
*hooks on hexacanth larva

Question 2

Answer 2

Adult Taenia spp.

Question 3

Answer 3

Scolex of Taenia spp.

Question 4

Answer 4

Mature segment of Taenia
*single lateral genital pore (‘in middle’)
*hermaphrodites (male+female)

Question 5

Answer 5

Gravid segment of Taenia spp.
*Christmas tree

Question 6

Answer 6

Cysticercus
*single protoscolex, fluid-filled cyst
Ex. Taenia pisiformis (dog)

Question 7

Answer 7

Coenurus
*many protoscolices attached to wall of a fluid-filled cyst
Ex. Taenia serialis

Question 8

Answer 8

Strobilocercus
*miniature adult, no cyst
Ex. T. taeniaeformis (cat)

Question 9

Answer 9

Echinococcus granulosus/canadensis Adult
*genital pore in CAUDAL half

Question 10

Answer 10

Cystic Hydatid
*many protoscolices free in fluid-filled cyst
Ex. Echinococcus granulosus/canadensis

Question 11

Answer 11

Top Left: E. canadensis
Bottom Right: E. multilocularis

Question 12

Answer 12

Echinococcus adult on a mucosal surface

Question 13

Answer 13

Neural Hydatid Cyst

Question 14

Answer 14

Echinococcus multilocularis Adults
*western Canada and S. ON

Question 15

Answer 15

Alveolar Hydatid (in liver)
Ex. Echinococcus multilocularis