A new species in the genus Vitronura Yosii, 1969 （Neanuridae, Paleonurini） from Sichuan Province, China is described and illustrated. An identification key for all the known species of the genus Vitronura is also pr...A new species in the genus Vitronura Yosii, 1969 （Neanuridae, Paleonurini） from Sichuan Province, China is described and illustrated. An identification key for all the known species of the genus Vitronura is also provided. Vitronura qingchengensis sp. nov. differs from other species of Vitronura in the presence of 5 denticles on mandible, 3 chaetae on tubercle Fr, Oc and De of head respectively, separate Di tubercle of head, and an inner tooth on claw.展开更多
The genus Crossodonthina Yosii, 1954 is introduced and the diagnosis of the genus is provided. A new Chinese species, Crossodonthina choui, from Hunan Province is described. The new species can be separated from all k...The genus Crossodonthina Yosii, 1954 is introduced and the diagnosis of the genus is provided. A new Chinese species, Crossodonthina choui, from Hunan Province is described. The new species can be separated from all known species by having a unique mandible and s-setae formula. The mandible consists of 5 branches and 3 basal teeth （one tooth is finger-like）. The s-setae formula of the new species is 2＋ms, 2/1, l, 1,2,1.展开更多
Since reconciliation was first described more than 20 years ago, a large number of postconflict be- haviors have been observed among females in many polygynous primate species. However, few studies have been conducted...Since reconciliation was first described more than 20 years ago, a large number of postconflict be- haviors have been observed among females in many polygynous primate species. However, few studies have been conducted among males, perhaps due to the rarity with which they maintain friendly relationships with one another and their aggressive competition for resources. Although this is true for many primate males, Sichuan snub-nosed monkeys Rhinopithecus roxellana represent a potential exception as male cooperation has been known to occur. In this study, using postconfiict/ matched-control（PC-MC） and time-rule methods, we analyzed postconflict behavior among males and the possible occurrence of bystander affiliation or reconciliation. A total of 246 PC-MC pairs among leader males were obtained. On average, each leader male exhibited only 0.04 aggressive be- haviors per observation hour, and conciliation among leader males occurred at a low rate （2.03%） relative to other primate species. The occurrence of consolation-affiliation interactions between focal males and group members other than former opponents differed significantly between PCs and MCs, which is the first time this has been confirmed among R. roxellana males. We discuss the results in light of recent theories concerning consolation in primates. The patterns of postconflict contact demonstrated that R. roxellana may be a unique species among colobines.展开更多
基金supported by China Postdoctoral Science Foundation funded project(20100470743)the WANG K-C Education Foundation,Hong Kong
文摘A new species in the genus Vitronura Yosii, 1969 （Neanuridae, Paleonurini） from Sichuan Province, China is described and illustrated. An identification key for all the known species of the genus Vitronura is also provided. Vitronura qingchengensis sp. nov. differs from other species of Vitronura in the presence of 5 denticles on mandible, 3 chaetae on tubercle Fr, Oc and De of head respectively, separate Di tubercle of head, and an inner tooth on claw.
基金supported by the China Postdoctoral Science Foundation (20100470743)the WANG K-C Education Foundation, Hong Kong
文摘The genus Crossodonthina Yosii, 1954 is introduced and the diagnosis of the genus is provided. A new Chinese species, Crossodonthina choui, from Hunan Province is described. The new species can be separated from all known species by having a unique mandible and s-setae formula. The mandible consists of 5 branches and 3 basal teeth （one tooth is finger-like）. The s-setae formula of the new species is 2＋ms, 2/1, l, 1,2,1.
文摘Since reconciliation was first described more than 20 years ago, a large number of postconflict be- haviors have been observed among females in many polygynous primate species. However, few studies have been conducted among males, perhaps due to the rarity with which they maintain friendly relationships with one another and their aggressive competition for resources. Although this is true for many primate males, Sichuan snub-nosed monkeys Rhinopithecus roxellana represent a potential exception as male cooperation has been known to occur. In this study, using postconfiict/ matched-control（PC-MC） and time-rule methods, we analyzed postconflict behavior among males and the possible occurrence of bystander affiliation or reconciliation. A total of 246 PC-MC pairs among leader males were obtained. On average, each leader male exhibited only 0.04 aggressive be- haviors per observation hour, and conciliation among leader males occurred at a low rate （2.03%） relative to other primate species. The occurrence of consolation-affiliation interactions between focal males and group members other than former opponents differed significantly between PCs and MCs, which is the first time this has been confirmed among R. roxellana males. We discuss the results in light of recent theories concerning consolation in primates. The patterns of postconflict contact demonstrated that R. roxellana may be a unique species among colobines.
