Zool. [f. Gr. κοινός common + βλαστός germ, after Ger. coenoblastem, Marshall.] The name given by W. Marshall of Leipzig, to the embryonic tissue, supposed by him to give origin eventually to the endoderm and mesoderm in the Sponges.
1883. Zool. Rec. for 1882, 8. (Abstr. Marshall’s paper) The contents (called ‘coenoblast’) of the segmentation-cavity.
Hence Cœnoblastic a.
1885. Proc. Boston Soc. Nat. Hist., XXIII. 85. Filled up solidly by a ‘coenoblastic’ membrane.
