For atlases in other spaces than the human MNI corresponding normalization templates have to be included in a normalization sub-folder. As an example, for the Px Rat (Groningen) atlas illustrated below many PET templates and MR template are available.
The template files need to be in NifTI format. They can be accompanied by a simple manifest text file containing
SPECIES = RAT (SPECIES = MOUSE) for mouse atlas templates.