Zhangixalus arvalis Lue, Lai, and Chen, 1995
其他俗名:雨蛙、雨怪、Farmland tree frog
特有種 保育類
成體特徵:
體長:中形,♂4-5cm,♀5-8cm 頭部:頭長約等於頭寬,吻端尖圓,上唇白色。眼睛虹彩顏色帶草綠色。鼓膜大而明顯,顳褶清晰。 背部:草綠色,皮膚稍粗糙,有許多小顆粒。 體側:兩側各有一條白線從口角延伸到股部,白線下方鑲有黑色不規則細線。 腹部:白色沒有斑點。 前肢:前臂及上臂都是綠色,外側白色皮瓣不明顯。指間有微蹼,吸盤發達。內掌瘤明顯 後肢:背面綠色,趾間有蹼,吸盤發達。
第二性徵:雄蛙體型較小,有單一咽下外鳴囊,咽喉鳴囊位置的顏色較深。 相近種類比較:莫氏樹蛙及台北樹蛙的顏色為墨綠色,體側沒有白線。 分布:台灣特有種,僅分布在嘉義、雲林
及台南一帶的平地竹林、果園、芒草叢等開墾地。 繁殖期:主要在5至9月。 行為:特別喜歡在雨夜或大雨過後的夜晚鳴叫,叫聲是高而輕脆一連串「ㄍ一、ㄍ一、ㄍ一」。雄蛙經常上百隻一起出現,但分開停棲在遮蔽良好的植物體上鳴叫,有時候甚至會出現在二、三公尺高的地方。雄蛙鳴叫吸引雌蛙配對之後,雌蛙會帶著雄蛙到水邊落葉底下產卵。 卵:白色泡沫型卵塊。 蝌蚪:身體扁平,尾巴尖細,約13mm。身體深褐色,散佈著不規則的黑點。
•快速鑑定清單
- 中型、背部草綠色
- 指(趾)端有吸盤
- 從吻端到體側有一條白線
- 腹部或體側沒有斑點
Natural Histrory: Zhangixalus arvallis is an endemic and endangered species inhabiting in lowlands. Only a few populations are found at Yunlin and Chiayi
counties, located at central Taiwan. Breeding season is from May
to September. Males prefer to call on bamboo trees near rice field
or still water. They are more active after summer showers.
Sometimes hundreds of males congregate to be a large chorus at night.
Their voice is a high-pitched, cricket-like trill. White foamy egg
masses are laid on the ground near still water. After hatching,
tadpoles are washed by rains into the still water and develop there. |