[A]
Acanthostyles with only pointed end spined.
Styles present. |
(de Laubenfels, 1930) |
Sponge:
Stalked, frondose.
Consistency: spongy to cartilaginous.
Surface: superficially smooth, finely hispid, prickly.
Oscula: and pores not evident.
Color: Preserved: Pale drab. Alive: brick red.
Spicules: Megascleres:
(1) Acanthostyles -pointed end spined; smooth end bent:
180 - 320 um.
x 12 - 20 um.
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(2) Styles:
430 - 550 um.
x 15 - 20 um.
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(3) ? Styles- long-smooth (broken-not identifiable):
>800 um.
x 10 um.
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(4) Strongyles:
350 - 370 um.
x 16 - 19 um.
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Microscleres:
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(1) Oxeote Rhaphides:
200 - 330 um.
x 2 um.
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Skeleton:
Ectosome a dermal membrane 75 μm thick, with scattered dark cells and foreign bodies.
Choanosome divided into axial and peripheral regions. Axial with smooth styles in confusion or trace of a reticulation. Peripheral: dense, with Acanthostyles pointing outwards.
Distribution: Southern California.
Depth: Deep water, 36 m.
Note: Taken from original description and with de Laubenfels' illustrations. See page 33A and 33B. Was Hemectyon hyale.
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Acanthostyles with spines at head end or over entire body.
Styles usually not present with the exception of rare or juvenile acanthostyles that look like styles.
May have Tylotes-Subtylotes OR Strongyles.
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