Identifying Sponges

Key to California Porifera (Page 158)

( From page 152 A) Acanthostrongyles present.
[A] GO TO PAGE 159
Toxas present.
Acanthostrongyles to > 130 μm.
cc158A.jpg
[B]
NO Toxas present.
Acanthostrongyles < 70 μm.
Crellomima sp. A Green & Bakus, 1994
Sponge: Thin encrusting less than 0.1 mm thick. Consistency: firm, fragile. Surface: superficially smooth with several raised volcano-shaped elevations with single apical oscules scattered on surface. Radial pattern around oscula.
Color: White. ?Alive.
Spicules: Megascleres: (1)Acanthostyles: 109 -174- 244 um. x 5 -8- 10 um. (2)Tornotes: 187 -221- 273 um. x 5.0 um. (3) Acanthostrongyles: 39 -56- 65 um. x 5 -6- 8 um. Microscleres: (1)Anchorate Isochelae, tridentate: 31 -33- 36 um.
Skeleton: Ectosome: Tightly packed Acanthostrongyles. Choanosome: Bundles of Tornotes and Acanthotylostyles oriented vertically with tips extending into the dermis.
Distribution: Central California, Santa Maria Basin.
Depth: Subtidal to deep water, 90 -130.5 m.
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