Which of the following is smallest tape worm of poultry?

Solution (By Examveda Team)

Dauainea proglotina is smallest tape worm of poultry.
Davainea proglottina is a very small (0.5 - 2 mm) tapeworm that affects the duodenum and upper jejunum of chickens, other gallinaceous birds, and pigeons.
The adult tapeworm has four to nine segments and the head (scolex) has four suckers surrounded by rings of hooks, with the mouth also ringed by hooks.