[A]
Microscleres Toxas ONLY or Toxas with Microxeas |
(de Laubenfels, 1930) |
Sponge:
Encrusting to 1 cm thick.
Consistency: fragile.
Surface: Surface superficially smooth with irregularly scattered conules, 1 mm high.
Oscula: and pores not evident.
Color: Alive: Yellow. Preserved: Pale drab.
Spicules: Megascleres:
(1) Acanthostyles:
60 - 85 um.
x 5.0 - 8.0 um.
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(2) Acanthostyle:
125 - 290 um.
x 7.0 - 13.0 um.
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(3) Tylostyle with microspined heads:
230 - 365 - 410 um.
x 5.0 - 13.5 um.
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Microscleres:
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(1) Toxa:
40-72 um.
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(2) May have Microxeas:
80-100 um.
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Skeleton:
Ectosome: Dermal membrane 50 μm; thick, fleshy, detachable, containing tangential Tylostyles.
Choanosome: Mostly sand with scattered tracts or bundles of Tylostyles, points up, with echinating Acanthostyles.
Distribution: Southern to Central California.
Depth: Intertidal to subtidal.
Note: Sim & Bakus, 1986 report this species from Southern California with a single size class of Acanthostyle, 10 -59- 110 μm. Was Clathriopsamma pseudonapya.
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Microscleres OTHER THAN Toxas ONLY, OR Toxas with Microxeas.
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