中国(鱼骨)属Hemibarbus和似(鱼骨)属Belligobio鱼类咽骨咽齿的研究

鲤科鱼类的咽骨,咽齿的形态和齿式是鉴别鲤科鱼类的依据之一,对研究其系统发育也有一定的参考价值。作者收集了我国(鱼骨)属和似(鱼骨)属的鱼类标本,将其咽骨,咽齿的形态作了详细的描述,并进行了比较研究,阐明其异同。

ON THE PHARYNGEAL BONES AND THEIR TEETH OF HEMIBARBUS AND BELLIGOBiO OF CHINA

The Present paper descripes the characteristics of pharyngealbones and their teeth of Hemibarbus and Belligobio of China.key to genera and species of Hemibarbus and Belligobio1(2)The first—second teeth of inner row look like mushroomHemibarbus macracanthus Lo yao et chen2(1)The first—second teeth o inner row do not look like mushroom3(4)With notch at the tip ointernal margin of the anteriorlimb Hemibarbus maculatus Bleeker4(3)Without notch at the tip ointernal margin of the anterior limb5(6)Length of bone 16.5—17.0 times in body lengthHemibarbus longirostris(Regan)6(5)Length of bone below 15.0 times in body length7(10)Without grooves in tne internal margin of dorsal of thepharyngeal8(9)Length of anterior limb shorter than that of posterior one.There is a large round or square Pit opposite the second tooth ofthe inner row Hemibarbus labeo(Pallas)9(8)Length of anterior limb equal to that of posterior one.There is alarge triangle pit opposite the second tooth of inner rowBelligobio numifer(Boulenger)10(7)With grooves in the internal margin of dorsal of the pharyngealBelligobio Pengxianensis Lo,Yao et Chen