Desmacidon, [222]

Desmophyes, [307]

Desmophyinae, [307]

Desmothoraca, [71]

Desolution of protoplasm, [11] f.

Deutomerite, [98]

Development, of Sponges, [226];

of Scyphozoa, [316];

of Alcyonaria, [341];

of Zoantharia, [373];