rhamphotheca: Calcareous Sponges - Plate 5 from Ernst Haeckel’s Kunstformen der Natur “Calcispongiae”, now called Calcarea, is a class of about 400 marine sponges that are found mostly in shallow tropical waters worldwide. Calcareous sponges vary from radially symmetrical vase-shaped body types to colonies made up of a meshwork of thin tubes, or irregular massive forms. The skeleton has either a mesh or honeycomb structure.

rhamphotheca:

Calcareous Sponges

- Plate 5 from Ernst Haeckel’s Kunstformen der Natur

“Calcispongiae”, now called Calcarea, is a class of about 400 marine sponges that are found mostly in shallow tropical waters worldwide. Calcareous sponges vary from radially symmetrical vase-shaped body types to colonies made up of a meshwork of thin tubes, or irregular massive forms. The skeleton has either a mesh or honeycomb structure.

(via scientificillustration)

Tags: marine life sponges Calcarea biology scientific illustration