Adult worms of Taenia are flat and ribbon-like, and are white or
in color. They are moderately sized, measuring 40 to 60 centimeters in
length, armed with four suckers.
The globular or sausage-shaped coenurus measures from a few millimeters to
several centimeters or more in diameter. It consists of a milky, viscous,
fluid-filled bladder into which multiple protoscoleces are invaginated.
It is generally translucent white to pearl-gray, and very thin walled.
They have a globular or elongated shape, and their surface is studded with
irregularly scattered protoscoleces (larval tapeworms produced
asexual budding from the inner wall of the cyst that mature
into adult tapeworms) generally arranged in clusters.
In this cross-sectional photo of
the coenurus, you can see the many
protoscoleces growing from the
This photograph shows the scolex of