The ears are relatively large and protuberant.
It has protuberant eyes and a long narrow body.
The forehead is of average width and angle and is moderately protuberant.
He demonstrates progressive coarsening of his facial features with a large bulbous nose, broad forehead, protuberant lips and forward-jutting jaw (prognathism).
The head is small, the mouth has a protuberant lower jaw and sharp, pointed teeth.
The eyes are protuberant and the nasolabial grooves distinct.
It uses its protuberant lips to expel a jet of water which disturbs the sandy seabed and reveals any shallowly buried benthic invertebrates.
Field identification involves locating birds showing flaccidity in the legs, wings and neck, as well as the presence of protuberant nictitating membrane.
