Pseudacris

...The vocal sac is located under the throat and swells up, and the various cries that give the frog its name in different regions are the source of its name. For example, the North American chorus frog Pseudacris (English name: chorus frog) and the bird-voiced frog Hyla avivoca (English name: bird-voiced frog) are examples of this, and in Japan, the Japanese tree frog (illustration) is well known for its cry that it makes in the hedges when a sudden shower comes. Most of them are small, with a body length of 3 to 5 cm, and the Florida little tree frog Limnaoedus ocularis is only 1 to 1.6 cm long. ...

*Some of the terminology that mentions "Pseudacris" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…鳴囊はのどの下にあって大きく膨らみ，各地でさまざまな鳴声が名の由来となっている。例えば北アメリカ産のコーラスガエル類Pseudacris(英名chorus frog)やクチブエガエルHyla avivoca(英名bird‐voiced frog)がそれで，日本では夕立がくると生垣で鳴き立てるニホンアマガエル（イラスト）の声が親しまれている。大半は体長3～5cmの小型で，フロリダ産チビアマガエルLimnaoedus ocularisはわずか1～1.6cmに過ぎない。…

※「Pseudacris」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報