海洋科学2025，Vol.49Issue(8)：44-52,9.DOI:10.11759/hykx20250911001
黄带拟鲹和星云扁鲨骨骼系统比较解剖学研究
Comparative study of the skeletal system anatomies of the white trevally(Pseudocaranx dentex)and the clouded an-gelshark(Squatina nebulosa)
摘要
Abstract
As the skeleton is a crucial organ in fish,to understand its evolution,we explored the similarities and differences among the skeletal systems of Osteichthyans and Chondrichthyans.This study utilized X-rays and CT scanning to observe and document the skeletal systems of the white trevally(Pseudocaranx dentex)and the clouded angelshark(Squatina nebulosa).The endoskeleton of the two species can be divided into axial and appendicular elements.In S.nebulosa,the skeleton was generally less mineralized,and the neurocranium was composed solely of a cartilaginous structure and lacked a large dermal bone.Moreover,P.dentex possessed four basipterygia in its pectoral fins,whereas S.nebulosa exhibited only three,a condition more similar to that of early-jawed vertebrates.In addition,symmetrically arranged,highly calcified lateral-line scales were observed on the caudal peduncle of P.dentex,which may be related to its locomotive behavior.In conclusion,this study enriches the fundamental data on the skeletal anatomy of marine fish and provides novel insights into the evolutionary development of the fish en-doskeleton.关键词
膜质骨/矿化软骨/形态解剖学/骨骼演化Key words
dermal bone/mineralized cartilage/morphological anatomy/skeletal evolution分类
农业科技引用本文复制引用
高广,李新,张佳伟,绍光彬,王彦丰,蒋克勇,肖志忠..黄带拟鲹和星云扁鲨骨骼系统比较解剖学研究[J].海洋科学,2025,49(8):44-52,9.基金项目
山东省重点研发计划(2022LZGC016) Supported by the Key R&D Program of Shandong Province,China,No.2022LZGC016 （2022LZGC016）
