Kingdom ?Phylum ?Scypha – Cross SectionSyconoid Body Plan

SpongocoelRadial Canal

Ostium Apopyle

Choanocytes Lining Radial Canal

AnimaliaPorifera

Kingdom?Phylum?Scypha – Longitudinal SectionSyconoid Body Plan

Spongocoel

AnimaliaPorifera

What type of body plan does this sponge have? Syconoid

What type of body plandoes this sponge have?

Asconoid

I.D. Opening

Osculum

I.D. Space

Radial canal

I.D. Opening

Apopyle

I.D. CellsChoanocytes (collar cells)

Phylum Porifera: Sponges

Sponges aresessile

Body Plans of Sponges

Sponges are Filter FeedersOstiumWater Enters Here

OsculumWater Exits Here

Asconoid Syconoid Leuconoid

Sponge Cell Types and Spicules

Pinacocytes

Flagellum

Collar

Pinacocytes on the Sponge Surface

Choanocytes

The Collar is Used to Filter Water

Sponge Anatomy – Asconoid Sponge

Ostium

Spongocoel

(Ostia)

(A cavity lined with choanocytes)

The Sponge Skeleton

Calcareous Spicules

Siliceous Spicules

Spongin: Protein Fibers