diff --git a/skimage/segmentation/_slic.pyx b/skimage/segmentation/_slic.pyx
index 2c4d3199..eb9742b1 100644
--- a/skimage/segmentation/_slic.pyx
+++ b/skimage/segmentation/_slic.pyx
@@ -34,7 +34,7 @@ def _slic_cython(double[:, :, :, ::1] image_zyx,
         controls the weights of the distances along z, y, and x during
         k-means clustering.        
     slic_zero : bool
-        True to run SLIC-ZERO, False to run original SLIC.
+        True to run SLIC-zero, False to run original SLIC.
 
 
     Returns
@@ -202,13 +202,6 @@ def _slic_cython(double[:, :, :, ::1] image_zyx,
                         if max_dist_color[k] < dist_color:
                             max_dist_color[k] = dist_color
 
-            ## DEBUG
-            print('Iter %d' % (i,))
-            print(str(np.asarray(max_dist_color)))
-
-    print('Image: ')
-    print(str(np.asarray(image_zyx)))
-
     return np.asarray(nearest_segments)