Adriaens Dominique, Verraes Walter
University of Ghent, Institute of Zoology, 9000 Ghent, Belgium.
J Morphol. 1996 Sep;229(3):255-269. doi: 10.1002/(SICI)1097-4687(199609)229:3<255::AID-JMOR2>3.0.CO;2-Y.
The adductor mandibulae complex has been a subject of discussion and uncertainties due to a wide range of differentiations that have occurred in teleosts during evolution. In Siluroidei a specific modification of a part of the muscle complex has resulted in the formation of a retractor muscle of the maxillary barbel. The main part of the muscle complex, responsible for the closure of the mouth, has undergone some changes as well, which are at the base of the homology problems encountered by different authors. In this paper the muscles have been studied in three ontogenetic stages of the siluroid Clarias gariepinus (Clariidae); two of them have been described. Based on the ontogenetic evidence and the literature, the following muscles are recognized: 1) the very weakly differentiated adductor mandibulae A A' , where only little distinction can be made between the A and the A' muscle parts, and 2) the adductor mandibulae A" . Caudally, both muscles are separated from each other by the levator arcus palatini, but are fused together anteriorly, inserting onto the lower jaw. In juvenile C. gariepinus, a differentiation has occurred in the A" muscle, thereby forming a distinct pars superficialis and a pars profunda. No A nor an A muscle is present. © 1996 Wiley-Liss, Inc.
由于硬骨鱼在进化过程中出现了广泛的分化，内收肌复合体一直是讨论的主题且存在不确定性。在鲇形目鱼类中，肌肉复合体的一部分发生了特定的改变，导致上颌须牵缩肌的形成。负责闭嘴的肌肉复合体主要部分也发生了一些变化，这是不同作者遇到的同源性问题的根源。在本文中，对鲇形目鱼类尖吻鲈（胡子鲇科）的三个个体发育阶段的肌肉进行了研究；其中两个阶段已有描述。根据个体发育证据和文献，识别出以下肌肉：1）分化非常弱的内收肌A A'，其中A和A'肌肉部分之间几乎没有区别，以及2）内收肌A"。在尾部，这两块肌肉被腭提肌彼此分开，但在前方融合在一起，插入到下颌。在幼年尖吻鲈中，A"肌肉发生了分化，从而形成了一个明显的浅部和深部。不存在A肌和A'肌。© 1996威利 - 利斯公司。
