Identifying Sponges

Key to California Porifera (Page 233)

( From page 232 B) No oscular fringe. Oxeas to 100 μm.
[A]
Sponge sac-shaped, laterally compressed to 8 mm wide.
NAPATT.jpg
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Grantia sp. Hartman, 1975
Sponge: Sac-shaped. Laterally compressed up to 8 mm wide. Oscula: no oscular fringe.
Color: White ?Alive.
Spicules: Megascleres: (1) Cortical Triradiates:
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(2) Endosomal Triradiates-Quadriradiate:
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(3) Oxeas (tufts at surface): No measurements given.
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Skeleton: Syconoid.Skeleton: A dermal cortical skeleton of tangentially arranged Triradiates with tufts of oxeas extending beyond the surface and a tangential layer of endosomal Triradiates and Quadriradiates.
Distribution: Central California.
Depth: Intertidal to subtidal.
[B]
Sponge encrusting, amorphous.
Leucandra losangelensis (de Laubenfels, 1930)
Sponge: Encrusting, amorphous to 3 cm thick.
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