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蠑螈是什么

  • 生活
  • 2023-04-24 13:18

蠑螈屬于脊索眾生門兩棲綱,是脊椎眾生,也是兩棲眾生。

蠑螈的身材形勢是圓筒狀,無鱗,外表潮濕,尾巴長而扁,手腳短小。蠑螈散布范疇普遍,在北美、歐洲、歐洲、美洲都有散布,華夏亞熱帶也有散布。蠑螈是大吃大喝眾生,很多袖珍眾生城市變成它們的食品。蠑螈用卵生的辦法繁衍,2到5月份是它們的繁衍期,此時它們會將卵產在水中。

蠑螈,從屬蠑螈亞目、蠑螈科、蠑螈屬。蠑螈科在華夏有6屬23種,辨別占寰球該科20屬77種的30.3%與29.9%。其散布范疇北起秦嶺以南,南達南海,西自橫斷山國的四四川大學涼山和云南騰沖及盈江一帶,東至閩、浙沿海地域和臺灣等島嶼,居于我國較潮濕的亞熱帶。

蠑螈身材飽滿,呈圓筒形,與匍匐類的四腳蛇很像,拖著一條長而側扁的尾巴。它們的皮膚濕潤滋潤,且有黏性,身材臉色特殊明顯—或長著鮮明的花紋,或有雞冠子樣的崛起。蠑螈的手腳較短,腳上無蹼。成體有眼瞼并且能動,但母體沒有眼瞼。

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