头鞍沟 [古生] glabellar furrow

头鞍基叶 [古生] basal glabellar lobe

头鞍前叶 [古生] frontal glabellar lobe

头鞍前沟 [古生] preglabellar furrow

头鞍侧叶 [古生] lateral glabellar lobe

钩头鞍子 hook-type saddle

头鞍横沟 transglabellar furrow

前头鞍面 pre-glabellar field

鞍头裸胸鳝 Gymnothorax sagmacephalus