. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Larynx of S. Cercopithcciis. A. a, epiglottis; b, os hyoiiles; c, sac; e, trachea. B. f, cavity of the os hyoides. Albino Baboon. — Os hyoides : base, b (fig- 896.) excavated, inclosing a sac, c; Larynx : H. '75 in.; Thyroid : upper margin concave, lower irregular ; Cricoid : a vertical Fig. Larynx of an Albino Saloon. b, section of the os hyoides, showing the inclosed sac c; d, thyroid ; /, crico-thyroid space; e, trachea. ridge rising from the posterior surface, the cartilage tapering towards the anterior surface
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Larynx of S. Cercopithcciis. A. a, epiglottis; b, os hyoiiles; c, sac; e, trachea. B. f, cavity of the os hyoides. Albino Baboon. — Os hyoides : base, b (fig- 896.) excavated, inclosing a sac, c; Larynx : H. '75 in.; Thyroid : upper margin concave, lower irregular ; Cricoid : a vertical Fig. Larynx of an Albino Saloon. b, section of the os hyoides, showing the inclosed sac c; d, thyroid ; /, crico-thyroid space; e, trachea. ridge rising from the posterior surface, the cartilage tapering towards the anterior surface * Ludwig. which is very narrow; Crico-thyroid space: large ; Epiglottis : apex obtuse. In the monkeys of America, some species have sacs appended to the larynx, the most complicated form of which is observed in Simla Seniculus, or Red Howling Monkey. — • Os hyoides, base excavated ; opening quad- rangular. Thyroid, volume three times that of man.* Cricoid elliptical, nearly osseous. Pomum large and excavated, into which pris- matico-oval sacs open ; sacs also communi- cating with the larynx by a semilunar open- ing at the base of the epiglottis. Arytenoids small. Cuneiform absent ; instead of them, prominence. \ Vocal ligaments : superior im- bedded in tendino -cartilaginous masses f ; in- ferior inserted at base of pomum. Ventricles passing on each side of epiglottis, which is connected with an infundibuliform sac, po- mum, and oval pharyngo-laryngeal sacs. § Voice intense; howl discordant. S. Appclla and S. Capucina. — Os hyoides not excavated. Thyroid, cricoid, and aryte- noid, like man. Cart. Santorini large, and curved backwards. Cuneiform absent ; their place supplied by fatty tendino-cartilaginous masses meeting each other to form a channel for the passage of air: in shape like the letter S. || Voice: quality like a flute, hence called Whistling Apes ; expression, a plaintive me- lody, from which they are also called Weeping Apes. S. Rosalia. Larynx perforated
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