ON THE GREENLAND RIGHT-WHALE. 143 



Fig. 



f—f. The anterior cornua of the thyroid. 

 g — g. The posterior ,, „ 



h — h. The ligaments by which the anterior cornua of the thyroid are attached to the hyoid. 

 i — i. The ligaments by which the posterior cornua of the thyroid are attached to the cricoid cartilage. 

 h. The epiglottis. 



I. The ligament by which the latter is attached to the internal surface of the cricoid. 

 m — m. The middle piece, or body, of the arytsenoid cartilages. 

 n — n. The anterior, or ascending, cornua of the arytsenoid cartilages. 

 p. The transverse ligament between the anterior cornua of the arytænoid cartilages. 

 r. The dorsal surface of the cricoid cartilages. 



2. The cricoid and the arytænoid cartilages, and the epiglottis from the left side. 



/c, m, and n. As in the first figure. 



o — 0. The posterior, or descending, cornua of the arytænoid cartilages. 



q. The transverse ligament between these cornua. 



s. The internal surface of the cricoid cartilage. 



3. The epiglottis and the ascending cornua of the arytænoid cartilages seen from the dorsal 



surface, the respiratory canals being closed. 

 h, I, n, p. As in the first figure. 



4. The whole larynx from the ventral surface. 



e. The ventral surface of the thyroid. 

 /, g, h, k, I, n. As in the first figure. 



5. The whole larynx from the left side. 



e. The ventral surface of the thyroid. 



f, g, h, i, k, I, n. As in the first figure. 



0. The descending cornua of the left thyroid cartilage. 



r. The left lateral edge of the cricoid cartilage. 



t. The ligamentous membrane between the lateral edge of the cricoid and the descending coniua of 



the arytænoid cartilages. 

 u. The anterior part of the tracheal sac. 



