Identifying Sponges

Key to California Porifera (Page 078)

( From page 077 B) Oxeas to 300-400 μm, never as large as 440-480 μm. Skeleton halichondriid OR mixture of halichondriid structure and loose tracts OR heavy reticulation of multispicular tracts; very dense, often with rock-like consistency.
[A] GO TO PAGE 079
Typical halichondriid structure; may have multispicular tracts as well.
[B] GO TO PAGE 081
Heavy, dense reticulation, often with rock-like consistency.
START 001 002