Identifying Sponges

Key to California Porifera (Page 013)

( From page 012 A) Tylostyles < 1000 μm, sponge not branched, or wth a cylindrical stem with enlarged clavate terminations. Surface variable.

[A]

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Tylostyles 1 size class with combined size range in any single specimen of < 180 μm.

[B]

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Tylostyles 1, 2 OR more size classes with combined size range >180 μm.