1490 



VOICE. 



Epiglottis broad. Lu 0'375 in. Voice more Epiglottis, oval but not large, 

 acute than in woman. torini absent. 



Meles Enropcea. Thyroid: margins notched 

 in front. Crico-thyroid chink triangular. Ary- Fig 901. 



900. 



Cart, of San- 



Anterior view of the Larynx of Ursus Malay anus. 



a, tubercle ; b, notch of thyroid cart. ; c, notch of 



cricoid cart. 



Showing the Sesamoid Cart, d d, of Ursus Ma- 

 layanus. 



tenoids small. Epiglottis triangular. Ven- 

 tricles deep, leading to two sacs, one of which 

 lies under the root of the tongue, the other 

 between the thyroid arid cricoid cartilages.* 



Mustela Furo. See Wolff. Ventricles lead 

 to sacs. 



Lutra Vulgaris.~ Thyroid : superior and in- 

 ferior margins parallel and inclined upwards, 

 superior terminating in a round apex, in- 

 ferior hollowed out in front b (fig. 901.), and 

 protuberant ; Cricoid, (c) inferior margin, so 

 widely separated in front, as only to be slightly 

 united at the inferior margin of the thyroid. 



* Cuvier was of opinion that the posterior part of 

 the vocal ligaments produced the vocal sounds. 



Oblique view of the Larynx of Lutra Vulgaris. 

 a, epiglottis ; b, thyroid ; c, c, cricoid. 



Canis familiaris. Thyroid : margins inclined 

 upwards ; wings unite at an obtuse angle. 

 Cornua : superior furnished with a transverse 

 ligament running to the thyroid as in the 

 hyaena. Cricoid : superior margin depressed in 

 front. Arytenoids curved, and inclined from 

 each other. Cart. Santorini and C. Cuneiform 

 present. Ventricles deep. Epiglottis trian- 

 gular, having a vertical furrow at its base. L. 

 (and consequently the pitch of the voice) 

 varies in almost every species; modulation 

 expressive of emotion. 



Felis Leo. Larynx : H. 3' 14 in. Thyroid : 

 margins parallel, and inclined forwards and 

 upwards ; wings united at an obtuse angle ; 

 notch large below the pomum. Cricoid el- 

 liptical, ridge of Galen prominent. Crico- 

 thyroid : space large, rhomboidal, traversed in 

 front by muscular fibres. Arytenoids rhom- 

 boidal. Cart. Santorini absent. Vocal liga- 

 ments : superior prominent. Ventricles deep, 

 forming a sac between the vocal ligaments. 

 Epiglottis : apex obtuse. Trachea 50 rings. * 

 Voice grave, very intense ; roar terrific. 



F. Tigris. H. 1-8 in. L. 1 in. The 

 superior ligament very prominent. In other 

 respects the larynx resembles that of the lion. 

 Voice more acute than the lion. Purrs like 

 the cat. 



F. Leopardus and Catus. Larynges differ 

 only in magnitude. The whole of the Feline 

 order are remarkable for the prominence of 

 the superior ligaments, by which the purring 

 is most probably produced. c (fig. 902.) ' 

 Voice a mewing, which is well known ; also 

 melancholy cry by night. 



* Vicq. D'Azyr and Cuvier state that the rings 

 of the trachea are not entire. Perrault, on the con- 

 trary, describes them to be complete circles; but 

 this is an error. 



t Vicq. d'Azyr ascribed the purring of the cat to 

 two thin membranes situated beneath the inferior 

 ligaments ; but we were unable to detect them : 

 could Cuvier, Wolff, Casserius, and others, 

 in finding them. 



