Descriptor : direction of nostrils
Look at the transversal position of nostrils on the head.
List of states
laterally directed
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Nostrils are more visible when head is seen in side view, than when head is seen in dorsal view.
dorsally directed
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Nostrils are more visible when headis seen in dorsal view, than when head is seen in side view.
dorso-laterally directed
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Nostrils are visible samely when head is seen in side view, as when head is seen in dorsal view.