Webb J F
Biology Department, Boston University, Mass.
Brain Behav Evol. 1989;33(1):34-53. doi: 10.1159/000115896.
The morphology and development of the mechanoreceptive lateral-line system in teleost fishes is reviewed, and the systematic distribution of defined types of lateral-line systems is summarized. The importance of an understanding of ontogeny is stressed and the roles of phylogenetic and developmental constraints in the evolution of the lateral-line system are discussed. Four types of head canal systems are identified on the basis of the relative development of the canals and the orientation of the neuromast receptors contained within them. The distribution of these patterns in the four major teleost clades is analyzed. It is suggested that a branched tubule system associated with the head canals is a primitive teleost character, while widened and reduced head canal patterns are convergent functional specializations in many taxa. The trunk canals are contained in a continuous series of lateral-line scales, and eight trunk canal patterns are described in teleosts. Given the correlation of the systematic distribution of the different trunk canal patterns, ecological habit and body shape, it appears that the trunk canals may function as a hydrodynamic monitor in swimming fishes.
本文综述了硬骨鱼类机械感受侧线系统的形态和发育，并总结了特定类型侧线系统的系统分布。强调了理解个体发育的重要性，并讨论了系统发育和发育限制在侧线系统进化中的作用。根据管道的相对发育情况以及其中所含神经丘感受器的方向，确定了四种类型的头部管道系统。分析了这些模式在四个主要硬骨鱼类分支中的分布情况。研究表明，与头部管道相关的分支小管系统是硬骨鱼类的原始特征，而在许多分类群中，变宽和变窄的头部管道模式是趋同的功能特化。躯干管道包含在一系列连续的侧线鳞片中，硬骨鱼类中有八种躯干管道模式。鉴于不同躯干管道模式的系统分布、生态习性和体型之间的相关性，躯干管道似乎可能在游泳鱼类中起到流体动力学监测器的作用。
