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江建平, 叶昌媛, 费 梁. 2008: 中国湖南角蟾科一新种——桑植角蟾. 动物学研究, 29(2): 219-222. DOI: 10.3724/SP.J.1141.2008.02219
引用本文: 江建平, 叶昌媛, 费 梁. 2008: 中国湖南角蟾科一新种——桑植角蟾. 动物学研究, 29(2): 219-222. DOI: 10.3724/SP.J.1141.2008.02219
JIANG Jian-ping, YE Chang-yuan, FEI Liang. 2008: A New Horn Toad Megophrys sangzhiensis from Hunan, China (Amphibia,Anura). Zoological Research, 29(2): 219-222. DOI: 10.3724/SP.J.1141.2008.02219
Citation: JIANG Jian-ping, YE Chang-yuan, FEI Liang. 2008: A New Horn Toad Megophrys sangzhiensis from Hunan, China (Amphibia,Anura). Zoological Research, 29(2): 219-222. DOI: 10.3724/SP.J.1141.2008.02219

中国湖南角蟾科一新种——桑植角蟾

A New Horn Toad Megophrys sangzhiensis from Hunan, China (Amphibia,Anura)

  • 摘要: 对采集于湖南桑植县天平山的角蟾标本(CIB200078)与同域分布的相近种尾突角蟾(Megophrys caudoprocta Shen, 1994)标本及其他相近种标本比较后发现,该角蟾标本在形态上明显不同于其他物种。其形态特征与尾突角蟾相比:体形小,体长54.7 mm;上眼脸外缘三角形突起小;体腹面后部有斑点;犁骨棱弱,末端不膨大,也无犁骨齿;雄性第一、二指背面黑婚刺相对较大,有声囊。与棘指角蟾相比:肛孔上方有一个向后突出的尾突,腹面观可见;雄性第一、二指背面黑婚刺相对较小而密。故将其订为新种:桑植角蟾Megophrys sangzhiensis sp. nov.。

     

    Abstract: A new horn toad Megophrys sangzhiensis sp. nov. (Holotype: CIB 200078, adult male, SVL 54.7 mm) has been recognized based on collections from Sangzhi County, Hunan Province in China. It was previously classified as M. caudoprocta Shen, in 1994 as both had a tail projecting above the vent. This new species can be distinguished from the latter by the following characteristics: Body is smaller in size, SVL 54.7 mm; a smaller tubercle is present on the outer edge of the upper eyelids; chest and belly is yellowish with dark brown or orange red spots; vomerine ridge is slender and not dilated at its posterior region, without vomerine teeth; larger and sparse black nuptial spinules are found on the first two fingers of males with vocal sac. The new species differs from M. spinata Liu Hu, in 1973 by having a tail projecting above the vent at the ventral view, smaller and denser black nuptial spinules are found on the first two fingers in males. The size and density of the nuptial spinules on the first two fingers of the new species presents at a middle degree between those of M. caudoprocta and M. spinata.

     

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