Antibody:	Rat anti-mouse CD104
Detection system:	Secondary antibody coupled to fluorescein

Structure	Level	Pattern	Image	Note
TS17: otocyst epithelium	Ambiguous	Regionally restricted		At this stage staining is faint and irregular. It is restricted to cells of the epithelial-mesenchymal border and is restricted to a basal location.

Structure	Level	Pattern	Image	Note
TS20: inner ear epithelium	Present	Regionally restricted		Expression is at the basal pole of cells at the epithelial-mesenchymal border.

Structure	Level	Pattern	Image	Note
TS22: inner ear	Present	Regionally restricted	4C	Expression is at the mesenchymal-epithelial border.

Structure	Level	Pattern	Image	Note
TS22: inner ear	Present	Regionally restricted	4F	Expression is at the mesenchymal-epithelial border.

Structure	Level	Pattern	Image	Note
TS26: inner ear vestibular component	Present	Regionally restricted	5C	Expression is in the greater epithelial ridge, the spiral limbus and beneath the support cells.

Structure	Level	Pattern	Image	Note
TS26: cochlear duct	Present	Regionally restricted	5F	Expression is at the epithelial mesenchymal border.

Structure	Level	Pattern	Image	Note
TS27: utricle	Present	Regionally restricted	7C	Expression is intense beneath the sensory epithelium and weaker beneath the nonsensory epithelium.

Structure	Level	Pattern	Image	Note
TS27: cochlear duct	Present	Regionally restricted	7F	Expression is restricted to the epithelial-mesenchymal border.