Borojevic, R. (1967). La ponte et le développement de Polymastia robusta (Démosponges). Cahiers de Biologie Marine. 8(1): 1-6, pls I-II.
7162
Borojevic, R.
1967
La ponte et le d�veloppement de <i>Polymastia robusta</i> (D�mosponges)
Cahiers de Biologie Marine
8(1): 1-6, pls I-II
Publication
Available for editors
The morphology of the egg and the formation of the larva in Polymastia robusta Bowerbank are described. The larva is a flattened blastula, formed of equal and flagellated blastomeres; it lives on the bottom and glides actively on its flatened side. The metamorphosis and the differentiation of the cells are long delayed. The first differentiatcd cells are those of the basal and marginal
epithelium.
