| 41. | The drill produces a " core " which is photographed and split longitudinally.
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| 42. | The mast must be steadied both longitudinally and sideways whilst raising and lowering.
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| 43. | It contains about 12 strong furrows, longitudinally striated.
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| 44. | Below it is divided longitudinally by a median groove.
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| 45. | The teeth were split longitudinally, and the internal surfaces were ground flat.
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| 46. | It is somewhat rugose ( wrinkled ) longitudinally and of a grayish color.
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| 47. | Sutures slope forward from the dorsum which is on the longitudinally concave side.
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| 48. | The abdomen is whitish, longitudinally striped with ochreous.
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| 49. | The dorsum, at the upper surface, is only slightly concave longitudinally.
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| 50. | A dark-brown to black median stripe runs longitudinally along the body.
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