[A]
Microscleres: 2 types of Macroamphidiscs, one regular and one barrel-shaped.
Microhexactins rough, curved- OR straight-rayed. |
Wilson, 1904 |
Sponge:
Cup-shaped with deep atrial cavity.
Color: Not reported.
Spicules: Megascleres:
(1) Diactins:
0.5 -1.5-2.0- 6.0 mm.
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(2) Hexactins (ray):
0.2 -0.85- 3.5 mm.
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(3) Pentactins (tangential ray):
0.35 - 0.85 mm.
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(4) Basals:
Lost.
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Mesoscleres:
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(1) Pentactins (Pinules):
175 - 530 um.
(basal ray): 30 - 44- 60 um.
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(2) Marginal Diactins- lost or absent:
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(3) Acanthophores:
No data.
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Microscleres:
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(1) Macroamphidiscs (normal):
455 um.
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(2) Macroamphidiscs (barrel-form):
150 - 250 um.
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(3) Mesamphidiscs:
60 - 80 um.
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(4) Micramphidiscs:
from 28 um.
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(5) Microxyhexactins:
40 -50- 60 um.
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Skeleton:
Entirely composed of loose spicules.
Distribution: Central California.
Depth: Deep water.
Note: Data from original description, Wilson, 1904. No sieve membrane present. Known only from off Central America (Pacific) and Southern California.
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[B]
Microscleres: 1 type of Macroamphidisc, NONE barrel-shaped.
Microhexactins smooth, straight-rayed.
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Schulze, 1899 |
Sponge:
Compact conical body with flaring margins to 20 cm diameter.
Color: Not reported.
Spicules: Megascleres:
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(1)Diactins:
1 - 1.5 mm.
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(2)Hexactins (ray):
to 1 mm.
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(3) Pentactins (tangential rays):
80 - 100 mm.
(basals): No data.
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Mesoscleres:
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(1) Pentactins (pinulus):
109 -191- 228 um.
(basal ray): 23 -36- 72 um.
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(2) Marginal Diactins:
500 - 600 um.
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(3) Acanthophores:
300 - 600 um.
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Microscleres:
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(1)Macramphidiscs:
337 -410- 454 um.
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(2)Mesamphidiscs:
63 -128- 264 um.
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(3)Micramphidiscs:
16 -27- 53 um.
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(4)Oxyhexactins (diam.):
54 -66- 82 um.
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Skeleton:
Entirely composed of loose spicules; no fusion.
Distribution: Southern California.
Depth: Deep water.
Note: Data from Schulze, 1899, and Holotype USNM 7557.
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