Description of a New Species of the Genus Brachytarsophrys Tian and Hu, 1983(Amphibia: Anura: Megophryidae) from Southern China Based on Molecular and Morphological Data

A new species, Brachytarsophrys popei sp. nov., is described based on a series of specimens collected from Mount Jinggang, Jiangxi Province, Taoyuandong Nature Reserve, Hunan Province and Nanling Nature Reserve, Guangdong Province, China. The new species can be easily distinguished from other known congeners by morphology, morphometrics and molecular data of the mitochondrial 16S rRNA gene. It is characterized by its relatively small size with 86.2 mm in snout-vent length in adult female and 70.7 mm-83.5 mm in males; vomerine teeth bearing on two markedly elevated ridges, which projecting behind far beyond the posterior level of the choanae, widely separated by a distance nearly 1.5 times length of one; margin of tongue de^ply notched behind; toes about one-third to two-thirds webbed in males, at most one-third webbed in female; the webs extending as a wide fringes along either side of toes; upper eyelid with tubercles, one of which is enlarged and becoming a remarkably prominent, bluntly conical light- yellow horn; black tiny nuptial spines on the dorsal surface of the first finger and second finger base, single vocal sac in males; gravid females bear pure yellowish oocytes; tadpoles with a transverse white stripe on ventral surface and two longitudinal white stripes along the sides of body. The new species represents the fifth known Brachytarsophrys species.

罗霄山脉珍稀濒危重点保护野生植物的生存状况及保护策略

为加强对罗霄山脉地区珍稀濒危植物的保护和管理,作者在对该区域的植被和植物区系全面调查的基础上,针对珍稀濒危植物的组成、种群数量、生存状态等进行了深入调查和评估。结果表明:(1)整体上,罗霄山脉各类珍稀濒危植物共59科142属279种,其中:被IUCN红色名录收录17种,包括极危种(CR) 2种,濒危种(EN) 3种,易危种(VU) 12种;被《中国生物多样性红色名录:高等植物卷》收录的共105种,包括极危种9种,濒危种33种,易危种63种;被《国家重点保护野生植物名录》收录的共257种,包括Ⅰ级8种,即银杏(Ginkgo biloba)、资源冷杉(Abies beshanensis var.ziyuanensis)、南方红豆杉(Taxus wallichiana var.mairei)、莼菜(Brasenia schreberi)、伯乐树(Bretschneidera sinensis)、细叶石斛(Dendrobium hancockii)、铁皮石斛(D. officinale)、细茎石斛(D. moniliforme)等, II级249种;被CITES收录的有71种。(2)在局部区域,罗霄山脉自北至南由5条中型山脉组成,其珍稀濒危植物的数量分布由北向南呈现梯级变化,显示出与该地区植被和植物区系的丰富度和保存状况密切相关,其中幕阜山脉147种、九岭山脉138种、武功山脉133种、万洋山脉207种、诸广山脉192种。(3)从珍稀濒危植物属种组成看,保存有大量古老、孑遗和特有的类群,并且受到气候和地理环境的影响,其中有单型属19属,中国特有种129种。本文针对各珍稀濒危植物的生存现状,提出了按分布区域和濒危性质进行群落监测或适度进行人工干预等保护措施。