We provide an expanded morphological description of the rarely known Lau＇s stream snake Opisthotropis laui Yang, Sung and Chan, 2013 based on six new specimens from Qixingkeng Natural Reserve, Enping City and Mt. Nia...We provide an expanded morphological description of the rarely known Lau＇s stream snake Opisthotropis laui Yang, Sung and Chan, 2013 based on six new specimens from Qixingkeng Natural Reserve, Enping City and Mt. Nianyu, Shangchuan Island, Taishan City, Guangdong Province of China. The diagnostic characters of O. laui are revised accordingly as follows： dorsal scales moderately keeled throughout, in 23（25）：23：21（23） rows; 10 supralabials; 9-11 infralabials; two internasals, longer than wide, not touching with the loreal; one loreal, not touching with the eye; one or two preoculars; two postoculars; one or two posterior temporal scales; 170-176 ventrals in males, 152-159 ventrals in females; 58-61 pairs of subcaudals in males, 53-61 in females; body and tail dark olive above, with light yellow cross bars.展开更多
The Curvicubitidae is a Triassic cicada family with some taxa systematically debatable.Here a new curvicubitid species,Beaconiella tongchuanensis sp.nov.,is established from the Middle Triassic Tongchuan Entomofauna i...The Curvicubitidae is a Triassic cicada family with some taxa systematically debatable.Here a new curvicubitid species,Beaconiella tongchuanensis sp.nov.,is established from the Middle Triassic Tongchuan Entomofauna in NW China.Restudy of the two Australian species of Beaconiella Evans,1963(B.fennahi and B.multivenata)confirms that they are different species and first reveals the hindwing venation of B.multivenata.A detailed restudy of Curvicubitus triassicus Hong,1984 confirms the treatment of Curvicubitus as a junior synonym of Beaconiella.A key to all the six species of Beaconiella in Curvicubitidae is first given.Although reported from only three sites,the family Curvicubitidae potentially was globally distributed during the Middle-Late Triassic,implying that this family probably originated as early as the Early Triassic or even the Permian.展开更多
基金supported by the Project of the specimen platform of China,teaching specimen sub-platform to Y.Y.WANG
文摘We provide an expanded morphological description of the rarely known Lau＇s stream snake Opisthotropis laui Yang, Sung and Chan, 2013 based on six new specimens from Qixingkeng Natural Reserve, Enping City and Mt. Nianyu, Shangchuan Island, Taishan City, Guangdong Province of China. The diagnostic characters of O. laui are revised accordingly as follows： dorsal scales moderately keeled throughout, in 23（25）：23：21（23） rows; 10 supralabials; 9-11 infralabials; two internasals, longer than wide, not touching with the loreal; one loreal, not touching with the eye; one or two preoculars; two postoculars; one or two posterior temporal scales; 170-176 ventrals in males, 152-159 ventrals in females; 58-61 pairs of subcaudals in males, 53-61 in females; body and tail dark olive above, with light yellow cross bars.
基金supported by the National Natural Science Foundation of China(42293280)the Fundamental Research Funds for the Liaoning Universities and Shenyang Normal University(BS202209).
文摘The Curvicubitidae is a Triassic cicada family with some taxa systematically debatable.Here a new curvicubitid species,Beaconiella tongchuanensis sp.nov.,is established from the Middle Triassic Tongchuan Entomofauna in NW China.Restudy of the two Australian species of Beaconiella Evans,1963(B.fennahi and B.multivenata)confirms that they are different species and first reveals the hindwing venation of B.multivenata.A detailed restudy of Curvicubitus triassicus Hong,1984 confirms the treatment of Curvicubitus as a junior synonym of Beaconiella.A key to all the six species of Beaconiella in Curvicubitidae is first given.Although reported from only three sites,the family Curvicubitidae potentially was globally distributed during the Middle-Late Triassic,implying that this family probably originated as early as the Early Triassic or even the Permian.
