Identifying Sponges

Key to California Porifera (Page 094)

( From page 093 A) Tangential ectosomal skeleton present.
Color: pale lavender.
Oxeas 105-122 μm.
cc094A.jpg (de Laubenfels, 1932)
Sponge: Encrusting 2 - 4 mm thick. Consistency: fragile. Surface: superficially smooth. Oscula: few and irregular in shape, 1 mm in diameter, often with raised collars to 1 mm high.
Color: Alive: Pale lavender. Preserved: Cream.
Spicules: Megascleres: (1) Oxeas: 105 -112- 122 um. x 3.0 -6.2- 6.9 um.
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Skeleton: Ectosomal tangential skeleton, to 20 μm. A crust of tangetial Oxeas. Choanosome, dense confused subisotropic reticulation of Oxeas with apices of spicules united by spongin.
Distribution: Central California.
Depth: Intertidal.
Note: Was Halichoclona gellindra.
Color: white.
Oxeas : 120 - 140 μm.
Haliclona (Haliclona) sp. (Klontz, 1989)
Sponge: Encrusting, compact to 1 cm thick.
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