21. There is also a black mesial spot at the base of the anal brush. 22. BPOP is located in the parasagittal and mesial regions of the parieto-occipital cortex. 23. The head and thorax upperside are deep olive green, with a dark mesial stripe. 24. The hindwing upperside is grey with diffuse, dark, basal mesial and submarginal bands. 25. The abdomen underside has ill-defined buffish-grey mesial patches on the proximal segments. 26. Their mesial aspects resemble the adjacent lateral incisors, while their distal aspects anticipate the first premolars. 27. Viewed from the mesial or distal its heights of contour are similar to the three cusp variety. 28. The abdomen underside is without white mesial patches and the underside of the tail is the same colour. 29. The upper canines contain a mesial groove which differs from both Australopithecus and " Ardipithecus ". 30. Many textbooks have reproduced the outdated mesial surface of the cortex when they are actually represented on the convexity.
