Cell width, cell height and cell nucleus diameter in the two hindgut regions. Scatter plot depicting median values of cell width, cell height and cell nucleus diameter in the anterior chamber against median values of same parameters in the papillate region of seven specimens. The central line is the line of equality. Points lying on the line indicate that the median value of measured parameter is equal in both hindgut regions. Points below the line indicate that the median value of measured parameter is larger in the anterior chamber than in the papillate region. Points above the line indicate that the median value of measured parameter is larger in the papillate region than in the anterior chamber.