Sloths, like all mammals, have eukaryotic cells. This means their cells have a nucleus and other membrane-bound organelles.

However, you might be interested in some specific types of cells that are interesting in sloths:

* Algal cells: Some sloths have algae growing in their fur. These algae are thought to provide camouflage and possibly even nutrients for the sloths.

* Muscle cells: Sloths are known for their slow metabolism and slow movements. This is partially due to their muscle cells, which have low numbers of mitochondria, which are the "powerhouses" of the cell. This means they don't use energy as quickly as other mammals.

It's important to note that sloths don't have any unique cell types that aren't found in other mammals. They just have some interesting adaptations in the function and structure of certain cell types.