【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.。更多还原

【Abstract】 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,2007.Version 5.0(1 February,2007).[KH2]Holotype CIB 89001,adult male,SVL 41.0mm.Type locality is Nanxi of Heko Courty,Yunnan(22.52°N,103.98° E;alt.170m),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 38.2mm(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 dorsolateral 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 49.0mm;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 dorsolateral 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)Rana nigrovittata Liu and Hu,1959:519(Mengyang and Puwen of Jinghong,Yunnan).Hylarana(Hylarana)nigrovittata Fei,Ye and Huang,1990:140.(Cangyuan,Menglian and Xishuangbanna of Yunnan);Fei,1999:176,177(Fig.)(Cangyuan,Menglian and Xishuangbanna of Yunnan);Fei,Ye and Huang,2005:118,Fig.244(Cangyuan,Menglian and Xishuangbanna of Yunnan).Sylvirana nigrovittata:Frost DR.2007.Version 5.0(1 February,2007).[KH2]Holotype CIB 890166,adult male,SVL 43.7mm.Type locality.Zhushihe of Mengla County,Yunnan Province(21.48° N,101.56° E;alt.1000m),22 May 1989,collected by FEI Liang.Allotype CIB 890165,adult female,SVL 47.3mm;collected with the holotype in the same place and same time.Paratypes:7♂♂(CIB 573242-573243,573246-573247,573249-573251),5♀♀(CIB 573241,573244-573245,573248,573252),Ximengshan of Ximeng County,Yunnan,30 Nov.1957,collected by WU Da-Jin;4♂♂(CIB 570727-570730)and 1♀(CIB 570472),Menglen of Mengla County,Yunnan(alt.680m),11-23 Apr.1957,collected by LIU Chen-Chao et al.;2♂♂(CIB 57376-57377),2♀♀(CIB 57378-57379)and 1 juvenile(CIB 57380),Manwei of Menghai County,Yunnan(alt.1080m),15 Apr.1957,collected by WAN Yi-Sheng;7♂♂(CIB 570190-570192,570194,570532,570614-570615)and 1♀(CIB 570195),Puwen of Jinghong City(alt.1400m),23 Apr.1957,collected by LIU Chen-Chao;12♂♂(CIB 890085-890086,890164,890167-890171,890173-890176),2♀♀(CIB 890172,890177),Zhushihe of Mengla County,Yunnan(alt.1000m),21-22 May 1989,collected by FEI Liang,LUO Jia-Rui and YE Chang-Yuan.Diagnosis.The new frog is similar to Hylarana(Sylvirana)nigrovitata(Blyth,1855),but it is distinguished from the latter in having:1)no dark wide band below the dorsolateral fold;2)dorsal parts red brown or gray brown,with a few black spots;3)flanks with many black brown spots;4)vocal sacs internal visible in male,no black colour on throat;5)male with large humeral gland,about 2/3 the length of upper arm.But the latter:1)a dark wide band below the dorsolateral fold present;2)dorsal part uniform yellow brown;3)flanks with a few small black brown spots;4)vocal sacs externally visible in male,black colour on sides of throat;5)male with small humeral gland,about 1/2 the length of upper arm.Key to eight species of Hylarana(Sylvirana)nigrovitata group1.A dark wide band below the dorsolateral folds2No such band42.Vocal sacs of male externally visibleHylarana(Sylvirana)nigrovitataVocal sacs of male externally not visible33.Head as wide as long;snout rather rounded;throat and chest dark brown;humeral gland of male well-developedHylarana(Sylvirana)mortenseniHead longer than wide;snout rather pointed;throat and chest white and humeral gland of males indistinctHylarana(Sylvirana)faber4.Ventral part of nuptial pad with a notch and then be divided into two halves;SVL of male 34-41mm5Ventral margin of nuptial pad straight,not be divided into two halves;SVL of male 40-49mm65.Humeral gland of male white,large(about occupying 2/3 anterior aspect of upper arm);entire abdomen often with small dark spotsHylarana(Sylvirana)milletiHumeral gland of male brown,small(about 1/2 of upper arm);abdomen of body without dark spotsHylarana(Sylvirana)hekouensis6.Rear third of the dorsolateral folds not continuous,humeral gland of male white;snout rather pointedHylarana(Sylvirana)bannanicaRear third of the dorsolateral folds continuous,humeral gland of male brown;snout rather rounded77.Dark spots on flanks;upper lip with gray stripe;rear of thigh with bold pattern,the difference between SVL of males and females very small(SVL of males 40-49mm,females 40-50mm)Hylarana(Sylvirana)menglaensisNo spots on flanks;upper lip with white or yellow stripe;rear of thigh dusted with dark pigment,without clear pattern;the difference between SVL of males and females very large(SVL of males 36.2-45.5mm,females 57.7-63.7mm)Hylarana(Sylvirana)attigua更多还原