[A]
Main microscleres are thin Oxyhexactins. |
| | Heterochone incognitus
(Koltun, 1967) |
Sponge:
Compound-infundibuliform but poorly known.
Color: Not reported.
Spicules: Megascleres:
(1) Uncinates:
3.6 -5.4- 7.1 mm.
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(2) Pinular Hexactins (dermalia):
(distal ray): 123 -164- 222 um.
(tangential ray): 128 -168- 227 um.
(proximal ray): 68 -170- 352 um.
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Mesoscleres:
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(1) Hexactin 1:
(ray) 100 -172- 278 um.
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(2) Hexactin 2:
(ray) 146 -216- 341 um.
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(3) Scopules:
369 -571- 756 um.
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Microscleres:
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(1) Oxyhexactins:
(diameter): 64 -92- 126 um.
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(2) Hemioxyhexasters:
(diameter): 65 -100- 129 um.
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(3) Discohexasters:
(diameter): 21 -29- 44 um.
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Skeleton:
Framework penetrated by diarhysial channels.
Distribution: Southern California.
Depth: Deep water.
Note: Known only elsewhere from Kurile Islands. Data and figures from SIO P 592.
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[B]
Main microscleres are Discohexactins.
|
| | Heterochone tenera
(Schulze, 1899) |
Sponge:
Infundibuliform with short lateral tubes.
Color: Not reported.
Spicules: Megascleres:
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(1)Uncinates: absent?:
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(2)Pinular Hexactins:
(distal ray): 95 -191- 371 um.
(tangential ray): 137-210- 291 um.
(proximal ray): 111 -325- 556 um.
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Mesoscleres:
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(1) Hexactins (ray):
78 -168- 297 um.
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(2) Scopules:
244 -409- 598 um.
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Microscleres:
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(1)Discohexactins (diameter):
54 -70- 87 um.
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(2)Discohexasters (diameter):
47 -66- 86 um.
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(3)Oxyhexasters (diameter):
67 -98- 138 um.
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Skeleton:
Framework penetrated by diarhysial channels.
Distribution: Southern and Central California.
Depth: Deep water.
Note: Data from Cotype USNM 7542.
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