鮈亚科花型鱼类骨骼系统的比较

Comparison of Skeleton of Fishes of the Pattern of Hemibarbus Occurred in China

对我国花型Hemibarbuspattern鱼类作了骨骼系统比较,结果表明,此类型鱼类脑颅较长,副蝶骨平直或稍弯曲,眶蝶骨腹纵嵴发达(铜鱼Coreius septentrionalis例外),下颞窝和咽突中等大,基枕骨后突发达;脑颅中的上筛骨的后突、侧筛骨的外筛突,蝶耳骨的外突、上耳骨的后突、围眶骨和后颞窝等均有明显的差异;咽颅中的舌颌骨、尾舌骨、鳃盖骨和下咽齿的列数等又有显著的区别;附肢骨骼中的腰带骨、脊椎骨中的复合神经骨和第4椎骨腹侧的悬器等也有不同之处。据此,这些差异和区别可作为属间或种间的分类依据。

Comparison of skeleton of 5 species of the pattern of Hemibarbus fishes occurred in China was made based on the observation of bones of neurocranium, splanchnocranium and appendicular. The 5 species belonged to 4 genera of the Gohioninae. Neurocranium： there are many differences in the bones of neurocranium between genera, for example, the shape and size of supraethmoid, lateral ethmoid, circumorbital bones, sphenotic, epiotic and posttemporal fossa are varied between fishes belonging to different genera. Splanchnocranium： the morphology of hyomandibular, urohyal,opercular, pharyngeal teeth are also different between genera. Appendicular skeleton： pelvic girdle bone, neural complex spine and suspensorium are also varied in different fishes of the pattern of Hemibarbus. The differences in skeleton can be used as one of the important characters to identify genera and/or species.