| 释义 |
‖ dipleura, n. pl. Morphol.|daɪˈplʊərə|
[mod.L., neuter pl. of dipleur-us, f. Gr. δι-, δίς twice + πλευρά side (of the body).]
Organic forms with bilateral symmetry having a single pair of antimeres or corresponding opposite parts. Hence diˈpleural a., zygopleural with only two antimeres. diˈpleuric a., having right and left sides; exhibiting bilateral symmetry.
1883P. Geddes in Encycl. Brit. XVI. 844/2 The Zygopleura include forms bilaterally symmetrical in the strictest sense, in which not more than two radial planes, and these at right angles to each other, are present. Haeckel again divides these, according to the number of antimeres, into Tetrapleura and Dipleura. Ibid., The term bilateral..must be rigidly restricted..to the Centropipeda if not indeed to dipleural forms. |