. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Fig. 1. Larynx of the Rabbit laid open. 2. Side view of the same, externally. a, epiglottis ; b, thyroid; d, cricoid; c, crico-thy- roid ligament; e, trachea. Hi/strix cristata, Porcupine.—Vocal liga- ments absent. Ventricles of Morgagni none. Voice mute. Castor Fiber. The Beaver.—Larynx : II. 0'4*.5 in. Epiglottis triangular, having a vertical rap he upon its posterior surface terminating in a sac bordered by the vocal ligaments. Arytenoids small and conical. Vocal cords : L. 0'25 in. Trachea 22 rings. Voice acute
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Fig. 1. Larynx of the Rabbit laid open. 2. Side view of the same, externally. a, epiglottis ; b, thyroid; d, cricoid; c, crico-thy- roid ligament; e, trachea. Hi/strix cristata, Porcupine.—Vocal liga- ments absent. Ventricles of Morgagni none. Voice mute. Castor Fiber. The Beaver.—Larynx : II. 0'4*.5 in. Epiglottis triangular, having a vertical rap he upon its posterior surface terminating in a sac bordered by the vocal ligaments. Arytenoids small and conical. Vocal cords : L. 0'25 in. Trachea 22 rings. Voice acute. Mus Rattus. See details by Wolff. EDENTATA. Ornithorynchus paradoxus.— (Fig. 905.) Larynx : H. -6 in. Thyroid : wings united at an obtuse angle ; body partly cartila- ginous, and partly osseous ; supports laterally two transverse osseous processes f f, at the bases of which are two curved cartilaginous appendices. Cricoid elliptical. Arytenoid triangular. Ventricles not deep. A sulcus, d d, lies between superior ligament and cri- coid cartilage.* Epiglottis: apex acute, a. Trachea 15 rings. Armadillo.—Epiglottis bilobed. Voice mute. Brady pus tridaetylus or Sloth.— Larynx: Cart, of Santorini and superior voeal cords absent. Ventricles a mere impression. Infe- rior vocal ligaments free. Trachea convoluted. Voice _ a plaintive melody, consisting of an ascending and descending scale of tlie hexa- PACHYDERMATA. Equus.—H. 1-85. Thy- roid: wings united at an acute angle, and notched below to the pomum. Cricoid: margins, superior deflected inwards. Crico-thy- roid chink inclined both vertically and horizon- tally. Arytenoids large; bases deflected from each other, by which the glottis is always kept open. Cart, of Santorini curved or hook-like * This is described by Blainville, but Meckel seems not to have observed it. •)• Bingley, An. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readab
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