Identifying Sponges

Key to California Porifera (Page 210)

( From page 002 H) Monacts, Triacts, and/or Tetracts only. May have Rhaphides as microscleres. No Calthrops.
[A]
Sponge thin, < 1.0 mm.
Styles < 1500 μm.
Triacts to hexactines terminate in small bulbs.
cc210A.jpg
Cyamon koltuni Sim & Bakus, 1986
Sponge: Very thin encrusting < 1mm thick.
Color: Alive: Orange.
Spicules: Megascleres: (1) Styles (thick): 260 -316- 380 um. x 10 -15- 20 um.
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(2) Styles (thin): 900 -967- 1400 um. x 5 -6- 7 um.
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(3) Triactine to Hexactine (rays only): 35 -46- 66 um. x 5 -9- 10 um. finely echinate; terminate in small bulbs.
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Skeleton: Material so thin that no definitive skeletal structure can be determined.
Distribution: Southern California.
Depth: Subtidal.
[B] GO TO PAGE 211
Sponge NOT thin, > 1 cm.
Styles > 1500 μm.
Triacts do NOT terminate in small bulbs.
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