摘要
记述了采自四川省石棉县小水村（29°15’N，102°19’E；海拔900m）和乐山市（29°33’N，102°45’E；海拔395m）大渡河水域的爬鳅科华吸鳅属鱼类1新种，大渡河华吸鳅SinogastromyzondaduheensisGouetYang，sp．nov．。其特征：臀鳍具细弱扁平的硬刺；腹鳍基部背侧具发达的肌肉瓣膜；偶鳍基背面和胸鳍腋部至腹鳍起点间的体侧无鳞；腹鳍后缘远不达肛门；侧线鳞78-82；腹鳍v-10-12。这些特征组合可以将新种与同属其它21个种区别开来。
A new species, Sinogastromyzon daduheensis Gou et Yang, sp. nov., is described based on the collections from the middle and lower reaches of the Dadu River, Xiaoshuicun, Shimian County （29°15＇N, 102°19＇E; alt. 900 m） and Leshan City （29°33＇N, 103°45＇E; alt. 395 m）. This new species can be distinguished from other congeneric species bythe following characters： no stong anal-fan spine; with muscular band on the dorsum of the pelvic-fro base; no scales on the dorsum of paired fin or the region between axilla of pectoral fin and pelvic-fro origin; tip of pelvic-fro not reaching anus; 78 -82 lateral-line scales; pelvic-fin with simple rays.
出处
《动物分类学报》
CSCD
北大核心
2013年第4期895-900,共6页
Acta Zootaxonomica Sinica
