…In some species of the same species, this is a hollow tube, while in others it has a complex mating organ (priapium) under the throat. Amphibians do not normally mate in the strict sense, and therefore do not have mating organs, but the male of the North American frog Ascaphus has a mating organ that always protrudes from the cloaca like a tail, and internal fertilization occurs during mating. The female also has a similar organ, but this is the ovipositor. … *Some of the terminology that mentions "Ascaphus" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…同じ仲間にはこれが中空の管になっているものや,のどの下に複雑な交尾器官(priapium)をもっている種類もある。 両生類はふつう厳密な意味での交尾を行わないので交尾器官をもたないが,北アメリカ産のカエルの1種アスカフスAscaphusの雄は総排出腔から尾のように常時突出した交尾器官をもち,交尾によって体内受精を行う。雌にも相同の器官があるが,これは産卵管になっている。… ※「Ascaphus」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 |
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