曾熙雯, 张鹏飞, 陈自明. 鳞头鳅触须畸形个体描述[J]. 云南大学学报(自然科学版), 2011, 33(S2): 440-443.
引用本文: 曾熙雯, 张鹏飞, 陈自明. 鳞头鳅触须畸形个体描述[J]. 云南大学学报(自然科学版), 2011, 33(S2): 440-443.
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Description of an abnormal individual of Lepidocephalus birmanicusRendhal,1948[J]. Journal of Yunnan University: Natural Sciences Edition, 2011, 33(S2): 440-443.
Citation: Description of an abnormal individual of Lepidocephalus birmanicusRendhal,1948[J]. Journal of Yunnan University: Natural Sciences Edition, 2011, 33(S2): 440-443.
shu

鳞头鳅触须畸形个体描述

Description of an abnormal individual of Lepidocephalus birmanicusRendhal,1948

    摘要
  • 摘要: 2010年7月，在对西双版纳勐腊县境内澜沧江水系鱼类资源进行调查的过程中，采集到8尾鳞头鳅Lepidocephalus birmanicus 标本，其中一尾的左侧外吻须在中部分叉；口角须多出一对，但多出的一对与正常的一对未分开，连在一起，中间有凹痕；这样的性状与其余7尾正常个体明显不同，属于畸形个体.由于这种现象在野外群体中较为罕见，现通过对该标本描述和与其余正常个体各个性状进行对比分析，结合相关研究成果，来探讨此个体出现畸形的可能原因.  

     

    Abstract: Eight specimens of Lepidocephalus birmanicus were collected in July,2010 during the fish resource exploration in Menglun,Xishuanbangna Prefecture in the lower reach of Lancangjiang River basin.One of them is abnormal in: the outer left rostral barbell forked midway,and there is an additional pair of maxillary barbells,but the additional one is not separated with the normal one.This study analyses the abnormal specimen and explores the possible causes for the abnormal characters.

     

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