Three possible RER profiles that might fit surfactant protein synthesis granules that have been found in other species.  Publications and images found so far have not shown rabbit to have RER profiles which contain a lamellated type organization as has been seen for ferret, guinea pig and dog.  It is questionable, but maybe likely, that if i had 400+ micrographs of rabbit like I do for guinea pig for dozens of separate animals, that something would show up in one or two of them.  But these not-so-great electron micrographs of rabbit alveolar type II cells (from three different experimental protocols: including post artificial blood infusion) might make the suggestion that more research would be needed, unlike what I have seen in mouse, where there doesn’t seem to even be an inkling of such structures.