नथना-या-नाक-का इसके अंग्रेजी अर्थ का उदाहरण

Maxillary teeth 27 or 28; head distinct from neck, much depressed; snout projecting, twice as long as the eye; nostril very small, in an elongated undivided nasal; loreal squarish, sometimes united with the posterior nasal; eight supralabials, 4th and 5th touching the eye; genials subequal.

They have a pointed snout and the distance of the nostril to tip is longer than the diameter of the eye.

The snout has a small and simple nose leaf with valvular nostrils.

The procellariids are the main group of medium-sized "true petrels", characterized by united nostrils with medium septum and a long outer functional primary.

The nostril is directed upwards, perfectly vertical.

In the first tetrapodomorphs (~415 mya) the excurrent nostrils migrated to the edge of the mouth, occupying a position between the maxillary and premaxillary bones, directly below the lateral rostral (a bone that vanished in early tetrapods).

The eye is about as long as its distance from the nostril.

Rostral four-sided, twice as broad as deep, with median cleft above; nostril pierced between the rostral, the first labial, and three or four nasals; 9 to 11 upper and 7 or 8 lower labials; mental large, triangular, followed by a pair of chin-shields; an outer pair of much smaller chin-shields.

Head much depressed; snout slightly longer than diameter of orbit; nostril lateral, below the canthus rostralis, slightly tubular.