挂榜山小鲵成体和亚成体舌器的形态特征  

The Morphological Features of Hyobranchial Apparatus in Adult and Subadult Hynobius guabangshanensis

作　　者：熊建利[1,2] 孙平[1] 朱文文[1] 刘秀英[3,4] 

机构地区：[1]河南科技大学动物科技学院,洛阳471003 [2]四川大学生命科学学院生物资源与生态环境教育部重点实验室,成都610064 [3]河南科技大学农学院,洛阳471003 [4]中南林业科技大学林业遥感信息工程研究中心,长沙410004

出　　处：《动物学杂志》2010年第2期138-142,共5页Chinese Journal of Zoology

基　　金：国家自然科学基金项目(No.30900138);河南科技大学博士科研启动基金项目(No.09001367);中南林业科技大学林业遥感信息工程研究中心开放性研究基金课题(No.RS2008k01)

摘　　要：以透明骨骼双色法对挂榜山小鲵(Hynobius guabangshanensis)成体和亚成体舌器的形态特征进行观察和详细描述。结果表明,在成体中,下舌软骨中部交叉;角舌软骨末端被第一下鳃骨和第一角鳃骨的愈合体遮盖;具有基鳃软骨角状突;第二角鳃骨骨化;尾舌骨骨化,呈"一"字形。在亚成体中,下舌软骨中部未交叉;第一下鳃骨和第一角鳃骨单独存在;无基鳃软骨角状突;第二角鳃骨未骨化;具有第三、第四对角鳃骨,且均为软骨;尾舌骨未骨化,成"1"字形。这些形态特征的改变可能由舌器在成体和亚成体阶段的功能所引起。The hyobranchial apparatus features of adult and subadult Hynobius guabangshanensis were observed by clearing and double-staining method. In adult,the middle of hypohyal was crossed; the end of ceratohyal was covered by a complex of hyobranchial Ⅰ and ceratobranchial Ⅰ; basibranchial plate was present; ceratobranchial Ⅱ was ossified; urohyal was also ossified and showed a＂一＂shape. In subadult,the middle of hypohyal was not crossed; hyobranchial Ⅰand ceratobranchial Ⅰwere present separately; basibranchial plate was not presented,ceratobranchial Ⅱ was not ossified; ceratobranchial Ⅲ and ceratobranchial Ⅳ were present,and both were cartilage; urohyal was not ossified and showed a ＂1 ＂ shape. These changes of morphological characters may be caused by the function of hynobranchial apparatus in adult and subadult.

关 键 词：小鲵科 成体 亚成体 舌器 形态特征 

分 类 号：S917.4[农业科学—水产科学]