Agnatha

基本解釋

Any of various primitive eellike vertebrates of the class Agnatha,such as a lamprey,lacking jaws and true teeth and having a circular,sucking mouth.
圓口綱脊椎動物，一種類似鰻魚的無顎綱原始脊椎動物，如盲鰻，沒有下顎和真正的牙齒，而長著圓形吮吸的嘴。
Any of various primitive eellike vertebrates of the class Agnatha, such as a lamprey, lacking jaws and true teeth and having a circular, sucking mouth.
圓口綱脊椎動物一種類似鰻魚的無顎綱原始脊椎動物，如盲鰻，沒有下顎和真正的牙齒，而長著圓形吮吸的嘴
The Galeaspid is one major group of Agnatha in the Middle Paleozoic,and is mainly distributed in China and North Vietnam.
盔甲魚類是古生代中期化石無頜類的主要類群,其分佈主要限於我國境內以及越南北部。
The Galeaspid is one major group of Agnatha in the Middle Paleozoic, and is mainly distributed in China and North Vietnam.
摘要盔甲魚類是古生代中期化石無頜類的主要類群，其分佈主要限於我國境內以及越南北部。
A new form of Polybranchiaspids, Agnatha, Damaspis vartus gen. et sp. nov., was collected from the lower part of Cuifengshan formation (lower Devonian), Qujing district, Yunnan province.
本文記述了雲南曲靖早泥盆世翠峰山組西山村段多鰓魚類一新屬種;變異垻魚(Damaspis vartus gen.;et sp