颚足

口器（第1，2小颚、第1，2颚足）内缘组成漏斗的刚毛随着发育逐步由羽状刚毛变短、变粗，直至成为细齿状刚毛；

The seine on the inner margin of the mouthpart ( the 1st and 2nd maxillula , 1st and 2nd maxillipeds ) change increasingly short , stout , then change to serrulate setae .

本文通过扫描电镜对寄生山羊体的山羊蠕形螨生活史各期颚体、足体和末体的超微结构观察。

The present paper reports the scanning electron microscopy observation on theultrastructure of gnathosoma , podosoma and opisthosoma in the life cycle of Demodexcaprae .

绵羊颚虱、绵羊足颚虱全部被杀死，羊蜱蝇的转阴率分别为83.3%和87.5%。

IDSA could kill all ovillus and pedalis , and the negative rates for ovinus were 83.3 % and 87.5 % , respectively .

三疣梭子蟹胚胎期腹神经链由1对大颚、2对小颚和2对颚足所对应的神经节以及腹部神经链组成。

The ventral nerve cord of the crab in the embryo included 1 pair mandibular neuromere , 2 pairs neuromeres of maxillae , 2 pairs neuromeres of maxillipede and abdomen nerve cord .