Taxonomic revision of <i>Amolops</i> <i>chunganensis</i> (Pope, 1929) (Amphibia: Anura) and description of a new species from southwestern China, with discussion on <i>Amolops monticola</i> group and assignment of species groups of the genus <i>Amolops</i>
Ke Jiang, 中国科学院成都生物研究所中国科学院山地生态恢复与生物资源利用重点实验室，四川 成都 610041，中国, Jin‐Long Ren, Zhi‐Tong Lyu, Dan Wang, Zeng Wang, Ke Lv, Jiawei Wu, Jia‐Tang Li, 中国科学院大学，北京 100049，中国, 中山大学有害生物控制与资源利用国家重点实验室/生命科学学院生物博物馆，广东 广州 510275，中国, 西南山地，四川 成都 610015，中国, 成都市野生动植物保护管理及疫源疫病防控专家咨询委员会，四川 成都 610000，中国, Swild Studio, Chengdu, Sichuan 610015, China
Abstract
<i>Amolops chunganensis</i> is a species complex and reported widely from eastern, southern, and southwestern China. Based on molecular data of 19 populations of <i>A. chunganensis</i> <i>sensu lato</i> from China, including the population from Mt. Wuyi (type locality), we recognize <i>A. chunganensis</i> <i>sensu stricto</i> and provide an expanded description based on the topotypic specimens. Combining morphological and molecular data, we describe a new species, <i>Amolops chaochin</i> <b>sp. nov.</b> , from southwestern China, which was previously identified as <i>A. chunganensis</i>. The new species is distinguished from all other species in the <i>A. monticola</i> group by: (1) moderate body size, SVL 35.3−39.2 mm in males (<i>n</i>=7), and 50.5−54.4 mm in females (<i>n</i>=7); (2) distinct tympanum, larger than half of eye diameter; (3) small tooth-like projection on anteromedial edge of mandible; (4) circummarginal groove on all fingers; (5) white tubercles on dorsal side of posterior body in both sexes; (6) distinct tubercles on dorsal thigh and white spinose tubercles on dorsal tibia in both sexes; (7) white tubercles on posterior region of tympanum in males; (8) toe webbing reaching disk by dermal fringe on inner side of toe II; (9) vomerine teeth present; (10) transverse bands on dorsal limbs; (11) external vocal sacs present in males. We further reviewed the assignment of <i>Amolops</i> groups, with an overall revision of membership and diagnosis of all species groups.