. On the anatomy of vertebrates [electronic resource] . Larynx of the Opossum,cccxx. LARYNX OF MAMMALIA. 585 45* the Kangaroos and Phalangers. Tlie Opossums have the lowerligament, above which is a small ventricle: they can squeakand also 1 purr. As a rule the Marsupials have little or no voice:the Wombat emits a guttural hissing sound: the Dasyurus Ur-sinus a snarling growl or whine: the Thylacine is described asuttering a short guttural cry. I have never heard a vocal note ofany kind from the Kangaroos, Potoroos, Petaurists, Phalangers,or Perameles. Bennett1 states that the Kangaroo utters a
. On the anatomy of vertebrates [electronic resource] . Larynx of the Opossum,cccxx. LARYNX OF MAMMALIA. 585 45* the Kangaroos and Phalangers. Tlie Opossums have the lowerligament, above which is a small ventricle: they can squeakand also 1 purr. As a rule the Marsupials have little or no voice:the Wombat emits a guttural hissing sound: the Dasyurus Ur-sinus a snarling growl or whine: the Thylacine is described asuttering a short guttural cry. I have never heard a vocal note ofany kind from the Kangaroos, Potoroos, Petaurists, Phalangers,or Perameles. Bennett1 states that the Kangaroo utters a moanwhen wounded and in pain. The voice of Rodents is shrilland monotonous : the cry of thewounded Hare is loud and pite-ous. The alae of the thyroid, , b, are quadrate, convex, andunited at an obtuse angle ; theposterior margins are obliqueand parallel. The cricoid, ib. d, isshort or narrow anteriorly, leav-ing a wide space for the crico-thyroid ligament, ib. c. Thearytenoids, ib. n, n, are rela-tively large, with everted api-ces. The epiglot
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