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Morphological evolution from aquatic to terrestrial in the genus Oreolalax(Amphibia,Anura,Megophryidae)

Progress in Natural Science:Materials International 2009年第10期19卷 1403-1408页

作者： gang wei a,b,c,bin wang c,ning xu b,zizhong lia,jianping jiang c,a institute of entomology,guizhou university,guiyang 550025,china b centre of ecology,guiyang college,guiyang 550005,china c chengdu institute of biology,chinese academy of sciences,chengdu 610041,china institute of entomology Guizhou University Guiyang 550025 China centre of ecology Guiyang College Guiyang 550005 China chengdu institute of biology Chinese Academy of Sciences Chengdu 610041 China

A phylogeny of 17 species in the genus Oreolalax is reconstructed based on 21 morphological characters from adult specimens,skeleton specimens,tadpoles and eggs.Four species groups are recognized,of which the O.rugosus species group is the most primitive,the O.weigoldi species group is the second,the O.omeimontis species group is the third and the O.pingii species group is the most recently diversified.based on the evolutional tendency of the morphological characters on the phylogenetic tree,it is proposed that the evolution of tympanum,tympanic annulus,columella,spoon-like cartilage and the web between toes reflect the habit changes from aquatic to terrestrial.Thus,Oreolalax is regarded as one important representative genus to study further the evolution of morphological characters from aquatic to terrestrial.

关键词： Aquatic Terrestrial Morphology Evolution Oreolalax

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A New Species of the Asian Toad Genus Megophrys sensu lato(Amphibia: Anura: Megophryidae) from guizhou Province, china

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Asian Herpetological Research 2018年第4期9卷 224-239页

作者： Shize LI ning xu Jing LIU jianping jiang gang wei bin wang Department of Food Science and Engineering Maotai University cAS Key Laboratory of Mountain Ecological Restoration and bioresource Utilization and Ecological Restoration biodiversity conservation Key Laboratory of Sichuan Province Chengdu Institute of Biology (CIB) Chinese Academy of Sciences (CAS) biodiversity conservation Key Laboratory Guiyang College

We describe a new species of the genus Megophrys sensu lato from guizhou Province, china. Molecular phylogenetic analyses based on mitochondrial DNA and nuclear DNA sequences all strongly supported the new species as an independent lineage in Megophrys(Panophrys) clade. The new species is distinguished from its congeners by a combination of the following morphological characteristics:(1) small body size with SVL bsent;(3) tongue not notched behind;(4) a small horn-like tubercle at the edge of each upper eyelid;(5) tympanum distinctly visible, rounded;(6) two metacarpal tubercles in hand;(7) relative finger lengths: II bbing at bases;(9) heels overlapping when thighs are positioned at right angles to the body;(10) tibiotarsal articulation reaching the level between tympanum to eye when leg stretched forward;(11) an internal single subgular vocal sac in male;(12) in breeding male, the nuptial pads with black nuptial spines on the dorsal bases of the first and second fingers.

关键词： Megophrys sensu lato new species taxonomy phylogenetic analysis guizhou Province china

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