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出 处:《动物分类学报》2008年第1期199-206,共8页Acta Zootaxonomica Sinica
基 金:国家自然科学基金项目(30670245)部分资助
摘 要:作者在云南南部的河口和勐腊等地先后采到与黑带水蛙Hylarana(Sylvirana)nigrovittata(Blyth,1855)相近的两个不同类型的标本,它们曾被不同学者鉴定为黑带水蛙。经对比研究,它们应为两个不同的新种,即河口水蛙Hylarana(Sylvirana)hekouensis Fei,Ye et Jie,sp.nov.和勐腊水蛙Hylarana(Sylvirana)menglaensis Fei,Ye et Xie,sp.nov.。Hylarana(Sylvirana) hekouensis Fei, Ye et Jiang, sp. nov. (Fig. 1) Rana nigrovittata Liu, Hu and Yang, 1960:151 (Hekou, Yunnan). Hylarana (Hylarana) nigrovittata Fei, Ye and Huang, 1990:140 (Hekou, Yunnan); Fei, 1999:176 (Hekou, Yunnan); Fei, Ye and Huang, 2005 : 118 (Hekou, Yunnan). Sylvirana nigrovittata Frost, 21307. Version 5.0 (1 February, 2007). Holotype CAB 89001, adult male, SVL 41.0 mm. Type locality is Nanxi of Heko Courty, Yunnan (22.52°N, 103.98° E; alt. 170 m), 8 May 1989, collected by FEI Liang. Paratypes. 5 ♂♂ ( CIB 89002-89006 ), 1 larval (CIB 89007), period stage 42 (Gosner, 1960), collected with the holotype by FEI Liang, LUO Jia-Rui and YE Chang-Yuan; 8 ♂♂ ( CIB 583795-583796, 583798- 583803), 1 ♀ (CIB 583797), 8 May 1958, collected by YANG Hu-Hwa et al. Diagnosis. This new frog is similar to Hylarana (Sylvirana) nigrovittata (=Limnodytes nigrovittata Blyth, 1855), but this new species is distinguished from the latter in having: 1 ) smaller in size, SVL 38.2 mm (34.3-41.0) of males; 2) skin of back smooth, no large tubercles; 3) gray brown on dorsum with dark brown spots, four spotes on rear part of body disposed regularly; 4) no wide dark band below the dorsolateml fold; 5) limbs with four-five dark cross-bars; 6) males with 1 pair subgular internal vocal sacs, no black colour on throad; 7) ventral part of nuptal pad with a notch divided it into two parts. But latter: 1 ) larger in size, SVL about 49.0 mm; 2) dorsum of body with numerous granules and a few large tubercles; 3) dorsum of body uniform brown yellow without black spots; 4) a dark wide band below the dorsolateml fold present; 5 ) dark cross-bars on limbs indistinct; 6) vocal sacs externally visible in male, black colour on sides of throat; 7) ventral part of nuptial pad of male straight, not divided into two parts. Hylarana (Sylvirana) menglaensis Fei, Ye et Xie, sp. nov. ( Figs. 3-5 ) R
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