State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China.
Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China.
PLoS One. 2018 Jul 6;13(7):e0199973. doi: 10.1371/journal.pone.0199973. eCollection 2018.
Zuojiangia jingxiensis, both a new genus and species, is described from the Pearl River in China. It is distinguished from all other genera and species of Labeonini by the unique combination of modified oromandibular structures and head skeleton: a well-developed, pendulous, and conspicuously arched rostral fold, with an entirely crenulated margin; prominent papillae densely covering the margin of the rostral fold and anterior part of the lower lip; long postlabial grooves, partitioning the lower lip into three parts; transverse branch of dentary longer than half the length of the longitudinal branch; stubby lateral process present at the anterolateral margin of the longitudinal branch of the dentary, close to the corner; in the upper jaw, the premaxilla bears a triangular ascending process tapering to a point; maxilla exhibits a pair of articular heads at the anterodorsal margin, and a distinct fingerlike descending process posterior to the medial articular head embracing the ascending process of the premaxilla.
本文描述了一种来自中国珠江流域的新的属和种，左江鱼。它与鲈形目栉齿鱼科的其他所有属和种的区别在于其特有的口颌结构和头骨的改造：一个发育良好的、悬垂的、明显拱形的额褶，边缘完全有小齿；大量的乳突密集覆盖在额褶和下唇前缘的边缘；长的下唇后沟将下唇分成三部分；齿骨的横向分支比纵向分支的一半还要长；在齿骨的前外侧缘有一个短粗的侧突，靠近角；在上颌，前颌骨有一个三角形的上升突，逐渐变细为一个点；上颌在背前缘有一对关节头，在后关节头后面有一个明显的指状下降突，包绕前颌骨的上升突。
