穴居盲副鳅及其性状演化
文献类型：期刊论文
| 作者 | 陈银瑞1; 杨君兴1; Ｂ.斯盖特2; Ｇ.阿兰西科2 |
| 刊名 | 动物学研究
 |
| 出版日期 | 1998 |
| 卷号 | 19期号:1页码:59-63 |
| 关键词 | 洞穴鱼类 新种 进化 |
| 其他题名 | A New Blind Cave Loach of Paracobitis With Comment on Its Characters Evolution |
| 中文摘要 | 1995 年由 G. Aljancic 先生在贵州荔波溶洞采到 3 尾体呈半透明、无眼睛的全穴居 鱼类标本 , 经鉴定为副鳅属中的 1 新种 , 依特征命名为长须盲副鳅 Paracobitis longibarbatus sp 1 nov 1。形态特征的分析表明 : 洞穴鱼类的性状演化 , 反映了物种对黑暗环境的适应性变异 , 同时也表达了物种适应辐射的结果 , 体现了性状在演化中趋同和趋异的双重意义。 |
| 英文摘要 | During February and March 1995,a Slovenian caving expedition led by Andrej Miheve in association with the Institute of Karst Geology from Guilin explored the karst region in Libo County,south of Guizhou,a province in China.During the expedition,3 blind loach specimens were collected by Gregor Aljancic,They have been recognized as a new species of the genus Paracobitis:P.longibarbatus sp.nov.The new species possesses the following characters:adipose keel is present along the dorsal and ventral edge of caudal peduncle,depth of adipose keel less than half of depth of caudal peduncle;nostrils are situated closely together,the anterior nostril formed into a tube with a long nostral barbel.These characters indicate that it belongs to the genus Paracobitis,regardless of the presence of a nostral barbel at the terminal of nostral tube.Similar nostral tube was observed also in P.variegatus longidorsalis Yang et al.The eyes and pigment are disappeared as the result of convergent evolution adapting to the lightless habitat.The same convergent phenomena are prevalent in the cavefishes of Cobitidae and Cyprinidae.This new species is the first blind loach in the genus Paracobitis,representing a specialized lineage of the genus.It is related to epigean P.variegatus longidorsalis which occurs in the same basin,Xijiang Basin.The new species can be easily distinguished from all congeneric species by the following characters:eyes and pigment disappeared,anterior nostril tube-like with a nostral barbel at the terminal;barbels,pectoral and pelvic fins well elongated;posterior margin of caudal fin strongly concave. |
| 收录类别 | 其他 |
| 资助信息 | 国家自然科学基金,中国科学院分类区系学科特别支持费资助 |
| 语种 | 中文 |
| 源URL | [http://159.226.149.26:8080/handle/152453/9833]  |
| 专题 | 昆明动物研究所_系统进化与生物地理学 |
| 作者单位 | 1.中国科学院昆明动物研究所,昆明650223 2.斯洛文尼亚卢布尔雅那大学生物技术学院 |
| 推荐引用方式 GB/T 7714 | 陈银瑞,杨君兴,Ｂ.斯盖特,等. 穴居盲副鳅及其性状演化[J]. 动物学研究,1998,19(1):59-63. |
| APA | 陈银瑞,杨君兴,Ｂ.斯盖特,&Ｇ.阿兰西科.(1998).穴居盲副鳅及其性状演化.动物学研究,19(1),59-63. |
| MLA | 陈银瑞,et al."穴居盲副鳅及其性状演化".动物学研究 19.1(1998):59-63. |
入库方式： OAI收割
来源：昆明动物研究所
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