中国两栖纲树蛙科一新纪录——绿背树蛙

RHACOPHORUS DORSOVIRIDIS BOURRET, A NEW RECORD OF FAMILY RHACOPHOIRIDAE TO CHINA

2011年2月和3月在云南省红河州屏边县境内大围山国家级自然保护区采集到绿背树蛙Rhacophorus dorsoviridis Bourret,1937,为中国两栖纲新纪录。主要特征为:外侧3指蹼较发达,介于1/3蹼到1/2蹼之间;后肢较短,前伸贴体时胫跗关节仅达肩部;体背面绿色为主,体侧近胯部和股前后有近椭圆形黑斑;雄性具单咽下内声囊。绿背树蛙与黑点树蛙虽形态相似,但黑点树蛙外侧3指仅具1/4蹼,雄性具单咽下外声囊,喉部皮肤薄而松弛,故其应为关系较近的两个独立种。

Three males of Green Back Treefrog （Rhacophorus dorsoviridi, Bourret, 1937s） were collected in Daweishan National Nature Reserve in Pingbian County of Yunnan Province in Southwestern China from Feb. to Mar. in 2011. This species is a new record of Rhacophoridae in China. It can be distinguished by a combination characters that have shown that the lateral 3 fingers to the webbed is relatively developed where the webbed is intermediate, between 1/3 to 1/2. This species has relatively short hind limb which can reach the shoulder when it extends to the articulatio tibiotarsalis. Body back is mainly covered by green and the fore- and -aft thigh covers with black spots on croth. Male individuals have internal single subgular vocal sac. However, for R. nigropunctatus the lateral 3 fingers to the webbed is 1/4 and males have outside single subgular vocal sac. Laryngeal skin is thin and flabby. Despite morphology traits are similar between the Back Treefrog （R. dorsoviridis） and Black-spotted Treefrog （R. nigropunctatus）, they are also two independent species.