| 31. | Viewed from the mesial or distal the buccal height of contour is in the gingival third of the tooth.
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| 32. | The head upperside is dark grey with a blackish mesial stripe and a distinct white line above the eye.
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| 33. | The underside of the palpus, middle of the thorax and the mesial abdominal patches are all greyish white.
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| 34. | There is a narrow, black mesial line on the abdomen upperside with five elliptical, pale yellow spots.
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| 35. | Type I involves failure of eruption of teeth distal to the most mesial affected tooth to be all same.
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| 36. | From a lingual aspect, they have well developed mesial and distal marginal ridges and a well-developed cingulum.
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| 37. | Like P 4, their distal root is wider than the mesial and formed by the fusion of two roots.
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| 38. | In the lower molars the accessory denticles on the mesial edges are replaced by a deep groove called the reentrant groove.
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| 39. | Adults have a rufous tail, a distinctive white iris, and a white throat bearing a dark mesial stripe bordered.
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| 40. | The green line, indicating the dental midline, is the defining line when it comes to mesial-distal direction.
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