摘要
于2007年11月5日在云南省河口县八字河采集到鱼类标本共57尾。其中6尾标本经鉴定为云南省鲿科鱼类一新记录种——越南拟鲿(Pseudobagrus kyphus)。本种的主要鉴别特征为:须四对,颌须短,不达胸鳍起点;脂鳍存在,后缘游离,不与尾柄相连;臀鳍条16–18;胸鳍和背鳍骨质硬刺强,前缘光滑,后缘具锯齿;背鳍上部具一明显黑斑,尾鳍上、下叶具很宽的黑缘。
Among the collection from Hekou County （the Bazi River, a tributary of the Nanxi River which flows into the Red River）, six specimens of Pseudobagrus kyphus were identified as a new record of Bagridae species in Yunnan Province. It could be distinguished by a combination of the following characteristics： four pairs of barbels, short maxillary barbels, not reaching the pectoral-fin origin; adipose fin present, dissociated from the caudal peduncle; anal fin with 16-18 rays; anterior edge of pectoral and dorsal spines without serrations; a dark blotch appearing on the margin of the dorsal fin and stripes appearing on the upper and lower lobes of the caudal fin.
基金
国家重点基础研究发展计划(2007CB411600)
国家自然科学基金(30730017)
国家科技基础条件平台工作重点项目(2005DKA21402)
关键词
拟鲿
鱼类
新纪录
云南
红河
Pseudobagrus kyphus
Fish
New species record
Yunnan
Red River
