《英文msh词典》Chordata,Nonvertebrate
[主题词] Chordata,Nonvertebrate
[中文释义] 脊索动物门,非脊椎动物
[英文释义] A portion of the animal phylum Chordata comprised of the subphyla Cephalochordata,UROCHORDATA,and HYPEROTRETI,but not including the Vertebrata (VERTEBRATES). It includes nonvertebrate animals having a NOTOCHORD during some developmental stage.