| 大鳍鳠头骨形态的观察 |
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| 引用本文： | 王德寿,罗泉笙,刘少英.大鳍鳠头骨形态的观察[J].西南师范大学学报(自然科学版),1990(3). |
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| 作者姓名： | 王德寿 罗泉笙 刘少英 |
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| 作者单位： | 西南师范大学生物系，西南师范大学生物系，西南师范大学生物系 北京大学生物系攻读硕士学位 |
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| 摘 要： | 对大鳍鱯的头骨进行了形态学观察,并与鲶科和鮡科鱼类头骨进行了比较.发现以大鳍鳠为代表的鲿科鱼类头骨既有相似于鲶科的一面,又有相似于鮡科的一面,从而肯定了鲿科的演化地位介于鮡科与鲶科之间.从大鳍鳠头骨上枕棘后端圆、不分叉,由于髓弧间板插入而不直接与背鳍第一基鳍骨相连等特征,确认大鳍鳠属Osteobagrus亚属.其头骨形态与南方鲶的相似性被认为是一种适应趋同
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| 关 键 词： | (鱼尝)科 大鳍鳠 头骨形态 适应趋同 |
MORPHOLOGICAL OBSERVATIONS ON THE SKULL OF MYSTUS MACROPTERUS BLEEKER (BAGRIDAE, SILURIFORMES) |
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| Wang Deshou Luo Quanshen Liu Shaoying.MORPHOLOGICAL OBSERVATIONS ON THE SKULL OF MYSTUS MACROPTERUS BLEEKER (BAGRIDAE, SILURIFORMES)[J].Journal of Southwest China Normal University(Natural Science),1990(3). |
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| Authors: | Wang Deshou Luo Quanshen Liu Shaoying |
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| Institution: | Southwest China Teachers University |
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| Abstract: | The skull of Mystus macropterus bleeker, a small economic Bagridae catfish distributed in the Changjiang River and the Zhujiang River, is described in this paper. A comparative study of the skulls of M. macropterus and Siluridae and Sisoridae catfish was made. It is discovered that Bagridae fish are similar to Siluridae in some aspects and to Sisoridae in some other aspects in skull structure. So it is suggested that Bagridae is between Sisoridae and Siluridae in evolutionary status.The supraoccipital spine of the skull .of M. macropterus is round posteriorly, and the 1st pterygiopfaore is kept away from it by the intervention of the interneural shield. Based on this and some other features of skull structure. M. macropterus is placed in the sub-genus Osteobagrus,It is suggested that the morphological similarities of the skull of M. macropterus to that of Siturns meridianlis Chen (Siluridae) is derived from adaptive convergence. |
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| Keywords: | Bagridae catfish Myslus macropierus skull morphology adaptive convergence |
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