摘要:Among many other important discoveries of vertebrate palacontology made inthe past few years,a few remains of fish afford special interest.In W Kunming,Yunnan,remains of Hybodus were found which represent the second knownshark in China.In Weiyuan,Szechuan,a dental plate of Ceratodus has beendiscovered,which is so far the only record of this interesting fish in China.Both are described in the following lines.