narrow-skulled pocket mouse
... that the narrow-skulled pocket mouse can be distinguished from Goldman's pocket mouse partly by the dimensions of its skull?
... that the <b id="mwBGE"><a href="./Narrow-skulled_pocket_mouse" id="mwBGI" rel="mw:WikiLink" title="Narrow-skulled pocket mouse">narrow-skulled pocket mouse</a></b> can be distinguished from <a href="./Goldman's_pocket_mouse" id="mwBGM" rel="mw:WikiLink" title="Goldman's pocket mouse">Goldman's pocket mouse</a> partly by the dimensions of its skull?