Identifying Sponges

Key to California Porifera (Page 072)

( From page 071 B) No Styles-Subtylostyles present. Tylostyles only.
[A]
Spirasters to 26 μm.
Color: yellow-brown.
NAPATT.jpg (Schmidt, 1862) [of Sim & Bakus, 1986]
Sponge: Encrusting to massive. No other information given.
Color: Alive: Yellow-brown.
Spicules: Megascleres: (1) Tylostyles: 200 -332- 420 um. x 2 -9- 15 um.
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Microscleres:
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(1) Spirasters: 12 -18- 26 um.
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Skeleton: No information given..
Distribution: Santa Catalina Id, Southern California.
Depth: Subtidal: 2.7 m.
Note: Difficult to access on basis of the description given. No illustrations available.
[B]
Spirasters to 89 μm.
Color: Tan to dark orange.
? Spirastrella sp. Bakus & Green, 1987
Sponge: Encrusting on rock.
Color: Alive: Tan to dark orange. Preserved: Tannish-white.
Spicules: Megascleres:
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(1)Tylostyles: 46 -162- 390 um. x 1 -3- 8 um.
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Microscleres:
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(1) Spirasters: 19 -44- 89 um.
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Skeleton: No information given..
Distribution: Southern California Bight.
Depth: Intertidal.
Note: Spirastrella sensu Ridley has been recently synonymized with Cliona, Family Clionaidae(Reutzler, 2002A). Spirastrella sensu Schmidt is considered as belonging to the Spirastrellidae (Reutzler, 2002 B).
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