| 释义 |
Perischoechinoidea Perischoechinoidea[pə¦ris·kō‚ek·ə′nȯid·ē·ə] (invertebrate zoology) A subclass of principally extinct echinoderms belonging to the Echinoidea and lacking stability in the number of columns of plates that make up the ambulacra and interambulacra. |