广西平鳍鳅科鱼类及其地理分布研究

Study on the fishes of Homalopteridae and their distribution from Guangxi

摘要: 迄今为止 ,广西平鳍鳅科鱼类有 16种和亚种 ,隶属 2亚科 8属 .与相邻的地区相比 ,分布于广西的平鳍鳅科鱼类较为原始 ,因此 ,广西可能是平鳍鳅科鱼类的起源中心 .平鳍鳅科鱼类起源后 ,演化出 2个分支 ,一直保留在原地或向东低海拔地区发展 ,另一支向西、北高海拔地区发展 ,导致腹吸鳅亚科和平鳍鳅亚科 2大类群的产生 .

Abstract: So far,there are 16 species and subspecies of homalopterin loaches distributed in Guangxi,which belong to 2 subfamilles and 8 genera.To compare with that of the regions which abutted on Guangxi,the homalopterin loaches in Guangxi are more primitive.Perhaps Guangxi is the original center of homalopterin loaches.And then the homalopterin loaches evolve to two clades,one remain in the original region or move to the East where the altitudes are lower;the other move to the West or North where the altitudes are h...