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Large Hypodermal Pentactins are present. |
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[B]
Large Hypodermal Pentactins are absent.
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| | Acanthascus platei
Schulze, 1899 |
Sponge:
Tubular with sharp simple oscular margin.
Color: Not recorded.
Spicules: Megascleres:
(1)Principal Diactins:
1.8 - 4.7- 10.4 mm.
(2)Thick Prostal Diactins:
9.3 -12.1- 16.2 mm.
Mesoscleres:
(1) Dermal Pentactins (tangential ray):
72 -132- 201 um.
(proximal ray): 76 -114- 172 um.
(2) Gastral Hexactins (ray):
65 -109- 172 um.
Microscleres:
(1)Oxy-Hemioxyhexasters (diameter):
88 -109- 133 um.
(2)Large Discoctasters (diameter):
194 -270- 382 um.
(3)Small Discoctasters (diameter):
112 -137- 167 um.
(4)Microdiscohexasters (diameter):
12.6 -18.6- 22.3 um.
Skeleton:
Entirely of loose spicules.
Distribution: Southern and Central California.
Depth: Deep water.
Note: Lateral surface with low conules bearing Diactin prostalia. Measurements from Holotype USNM 7502.
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