红尾副鳅的亚种分化及其动物地理分析

红尾副鳅（Paracobitis variegtus）广泛分布于黄河、长江和南盘江水系的上游。其背鳍分枝鳍条数目、前鼻孔的形态、头部斑纹、须的长度和前躯的被鳞程度等特征均表明红尾副鳅已分化为两个亚种。两个亚种的分布在地理上是相互隔离的:红尾副鳅指名亚种（P.variegatus variegatus）的分布范围限于黄河、长江水系的上游;而新亚种长鳍副鳅（P.variegatus longidorsalis）则仅分布于南盘江的上游。亚种的分化可能与晚更新世时滇东高原的急剧抬升有关。本文还讨论了Nemachilus berezowskii Gunther 1896和Nemacheilusoxygnathus Regan 1908的分类地位。经查看其模式标本,认为上述两个名称应为红尾副鳅指名亚种的同物异名。

Microrasbora Annandale, a new genus record in China, with description of a new species (Teleostei: Cyprinidae)

A new species of genus Microrasbora Annandale (1918), M. microphthalma, is described from the Nanwan River, a tributary of the Ruili River, Irrawaddy drainage, in southwest Yunnan province, China. This new species is the first record of the genus Microras

Akrokolioplax, a new genus of Southeast Asian labeonine fishes (Teleostei : Cyprinidae)

Akrokolioplax, new genus, is erected for the reception of Epalzeorhynchos bicornis Wu, 1977. It shares with the remaining species of Epalzeorhynchos what have usually been called "rostral lateral lobes" on the snout, which are non-homologous structures used to distinguish the two genera from all other Labeoninae genera. Akrokolioplax and Epalzeorhynchos differ in the position and structure of these lobes, and also in the morphology of the oromandibular structures. A detailed redescription is also provided for the type species of this monotypic genus, A. bicornis. It is presently known from the upper Salween River (=Nu Jiang in Chinese) basin in Yunnan (South China), Myanmar and Thailand.

Revision of Yunnanilus with descriptions of a miniature species flock and six new species from China (Cypriniformes: Homalopteridae)

The genus Yunnanilus Nichols, 1925 is revised; Eonemachilus Berg, 1938 is a junior subjective synonym. Yunnanilus includes at least nine described species and five undescribed species. The status of Y; salmonides Chaudhuri is still incertae sedis. Six new species are described: Y. parvus, Y: altus, Y; pachycephalus, X niger, Y. macrogaster and Y. paludosus. The last three species occur sympatrically in a small endorheic basin of eastern Yunnan; they developed different feeding specializations which allowed them to use different niches. Other species also have peculiar specializations. The diversity of feeding habits and related adaptations in Yunnanilus is greater than in the whole subfamily Nemacheilinae and is one more example of supralimital specialization. Speciation of fishes on the Yunnan Plateau is discussed. Several species are endangered or possibly extinct. Introduction