Identifying Sponges

Key to California Porifera (Page 096)

( From page 095 B) Sponge encrusting or lobate to tubular. No fistulae present.
[A] GO TO PAGE 097
Mean spicule length > 121 μm.
NAPATT.jpg
[B] GO TO PAGE 098
Mean spicule length < 120 μm.
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