[A]
Dermalia (= Pinular Hexactins) with distal ray short, club-shaped, and blunt. |
| | Heterochone calyx
(Schulze,1886) |
Sponge:
Caliciform with tubular lateral projections.
Color: Alive: White to orange.
Spicules: Megascleres:
(1) Uncinates:
0.56 -0.85- 1.46 mm.
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(2) Pinular Hexactins (distal ray):
60 -89- 150 um.
(tangential ray): 91-148- 211 um.
(proximal ray): 69 -314- 950 um.
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Mesoscleres:
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(1) Hexactins (ray):
92 -128- 204 um.
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(2) Scopules:
206 -328- 630 um.
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Microscleres:
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(1) Discohexactins:
(diameter) 44 -59- 88 um.
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(2) Oxyhexactins:
(diameter) 62 -74- 99 um.
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(3) Hemidiscohexasters:
(diameter) 49 -63- 80 um.
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(4) Hemi-oxyhexasters:
(diameter) 53 -74- 91 um.
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Skeleton:
Siliceous frame penetrated by diarhysial channels.
Distribution: Throughout California.
Depth: Deep water.
Other: Data from RMM 1-2763. The most common Hexactinellid in N. Pacific coastal waters. Often referred to as Chonelasma calyx in the literature.
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Dermalia (=Pinular Hexactins) with distal ray long, spindle-shaped and sharp.
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