Identifying Sponges

Key to California Porifera (Page 212)

( From page 002 I) Calthrops always present, with or without Monacts and/or Diacts, Asters or other microscleres.
[A] GO TO PAGE 213
Asters present.
NO Asters present.
Plakina bioxea Green & Bakus, 1994
Sponge: Lamellar with smooth scalloped edges.
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