Thanks for your comments.
The collection and subsequent use of xenosomes, i.e. foreign materials for the reenforcement of testacea shells has frequently raised the question: May this already be called behaviour?
Many members of the Hyalospheniidae build their shells using recycled shell plates scavenged from other testate amoebae, mainly from euglyphids (a behaviour called Kleptosquamy), sometimes also including fragments of diatom frustules and heliozoan spines.
Here are some examples of Nebela scavenging Euglyphida:
They store these objects in their shell, see top left in this example:
... until the use them for the next generation test.
Here is another example of a Nebela with beautiful decoration.
Very interesting organisms.
Cheers,
Hans
