[A]
Tylostyles to 1500 μm. No Styles. Oxeas to 920 μm. NO centrotylote Oxeas. |
Green & Bakus, 1994 |
Sponge:
Encrusting.
Consistency: firm, cartilaginous.
Surface: superficially smooth but granular from sand in dermal membrane and acanthoxeas below.
Color: White, ?Alive.
Spicules: Megascleres:
(1) Tylostyles:
192 -213- 244 um.
x 10 -11- 13 um.
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(2) Tylostyles:
1000 -1300- 1500 um.
x 5 -12- 18 um.
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(3) Oxeas:
600 -755- 920 um.
x 8 -9- 10 um.
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Microscleres:
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(1) Acanthoxeas:
104 -121- 148 um.
x 5 -7- 10 um.
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Skeleton:
Ectosome with thick dermal membrane, which includes sand grains but no Acanthoxeas.
Choanosome, with densely packed Acanthoxeas. Also contains irregularly spaced tracts of smooth Oxeas and Tylostyles, 3- 6 spicules thick from bottom of sponge to dermal membrane.
Distribution: Santa Maria Basin, Southern California.
Depth: Deep water, 54 - 100 m.
Note: Specimens were thin fragments. Note also that in a recent paper, Van Soest & Hooper, 2005 proposed to rename Desmoxyidae to Heteroxyidae.
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[B]
Styles-Tylostyles to > 1500 μm. Oxeas to > 920 μm. Centrotylote Oxeas present.
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| Higginsia sp.
Klontz, 1989 |
Sponge:
Thinly encrusting to 5 mm thick.
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