Phylogenetic relationships among families of the suborder Notothenioidei (Perciformes) based on morphological features of the cranial musculature.

本文描述并比较了南极鱼亚目8科56种南极鱼的颌部肌肉组织。对三叉神经下颌支的位置也作了详细的描述。在南极鱼亚目中，下颌收肌是最大和最明显的颅肌，通常由A1、A2、A3和Aw组成，与广义鲈形目一样。除南极鱼科和深龙科外，其他科的收肌形态相似。Notothenia，Paranotothenia和Dissostichus与其他Nototheniid属的区别在于具有A3。深龙科的裸龙科具有融合的A1-A2复合体，并且前部元件被腱交叉从A1-A2复合体分割。这些条件是裸龙科所独有的，在其他深龙类中没有发现。Harpagiferidae和Artedidraconidae与Nototheniidae具有相同的类形，即存在A1β，而与Bathydraconidae和Bathydrachthyidae没有共形。然而，特征分布与以前的分类显示出一些不一致。有些性状可能是异时性的结果。基于有限的证据，在这项研究中，Notothenioidei可以分为六组，这似乎是合理的，建议审查目前的分类Nototheniidae。

The jaw musculature of notothenioid fishes is described and compared based on a total of 56 species referred to eight families of the suborder Notothenioidei. The position of ramus mandibularis trigeminus was also described in detail. In the Notothenioidei, the adductor mandibulae, the largest and most conspicuous of the cranial muscles, is generally composed of sections A1,A2,A3 and Aw as in the generalized percoids. The morphology of the adductor mandibulae is similar in most notothenioid families except the Nototheniidae and Bathydraconidae. Notothenia, Paranotothenia and Dissostichus are clearly distinguished from the other nototheniid genera in having A3. Gymnodraco of the Bathydraconidae has a fused A1-A2 complex and the anterior element is segmented by a tendinous intersection from the A1-A2 complex. These conditions are unique to Gymnodraco and not seen in other bathydraconids. The Harpagiferidae and Artedidraconidae share the same apomorphy, the presence of A1β, with the Nototheniidae and have no synapomorphies with the Bathydraconidae and Channichthyidae. The character distribution, however, shows some inconsistencies with the previous classifications. Some characters were appeared to be resulted from heterochrony. Based on the limited evidence obtained in this study, the Notothenioidei can be divided into six groups and it seems reasonable to suggest a review of the current classification of the Nototheniidae.