...Thegreat cavity is the bulla tympani or bulb of the ear; a m is theauditory meatus or external hole of the ear... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...puma the tegmen tympani are relatively short, whereas in adult femalesof S...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Specimens from the western part of the range (easternOaxaca) have slightly smaller heads and proportionately larger tympani thanthe more eastern populations ()...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...The membrana tympani is larger than in other quadrupeds of the same size...
David Collins 「An Account of the English Colony in New South Wales, Vol. 2」
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