Identifying Sponges

Key to California Porifera (Page 214)

( From page 213 B) NO Sanidasters present.
[A] GO TO PAGE 215
Sponge lamellate.
Microxeas 86 - 190 μm.
cc214A.jpg
[B]
Sponge lumpy.
Microxeas 130 -202- 231 μm.
Poecillastra sp. A Green & Bakus, 1994
Sponge: Lump shaped. Surface: rough and prickly.
Color: Preserved: Drab.
Spicules: Megascleres: (1)Oxeas (thin) : 2750 -3445- 4000 um. x 8 -10- 16 um. (2)Oxeas (thick): 1375 -2527- 3675 um. x 34 -58- 91 um. (3)Styles: 1950 -2296- 2750 um. x 39 -71- 100 um. (4)Calthrops: 200 -505- 700 um. x 26 -67- 91 um. (5)Triacts: 200 -350- 400 um. x 26-55-78 um. (6)Triaenes: 120-541-700 um. x 26-55-78 um. Microscleres: (1)Microxeas (roughened): 130 -202- 231 um. (2)Asters: 13 -20- 29 um.
Skeleton: Ectosome: Thin dermal membrane. Surface with irregularly arranged Calthrops and Oxeas projecting through the surface. Choanosome: Confused with Oxeas and Calthrops.
Distribution: Southern California.
Depth: Deep water.
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