 The selectivity of the two circuits studies is described in an all-or-none fashion when the data is not so clear. For example, cells that are split something like 00%/00% with respect to the two brain regions are discussed as having near perfect selectivity (e.g. Abstract, also see subsection "Clustering of ganglion cell anatomy reveals selective sampling by the colliculo-parabigeminal and the colliculo-pulvinar circuit"). The data itself shows a more nuanced segregation, with all cell types studied having some projections to both brain areas. The text should reflect the data much more closely. This is an issue throughout the paper.  