Identifying Sponges

Key to California Porifera (Page 180)

( From page 157 B) Diacts = Subtylotes - Tylotes. NO Tornotes present.
[A]
Microscleres Anisochelae ONLY.
cc180A.jpg
Iophon rayae (Bakus, 1966)
Sponge: Thin, encrusting, amorphous. Consistency: soft, easily compressible. Surface: smooth and mucoid. Oscula: abundant, 67-500 μm in diameter.
Color: Alive: Cinnamon, cinnamon-brown, orange.
Spicules: Megascleres: (1) Acanthostyles: 84 -124-165- 192 um. x 6 -10-11- 14 um. (2) Acanthostyles: 149 -174-209- 265 um. x 6 - 10-11- 14 um. (3) Subtylote-Strongyle-Tylostrongyle: 109 -141-158- 186 um. x 3 -4 - 5 um. (4) Subtylostyle: 174 -189 - 206 um. (may be absent). Microscleres: (1) Palmate Anisochelae: 5 -15-18- 24 um.
Skeleton: Ectosome: Dermal membrane with bundles of diacts in horizontal clusters plus Anisochelae. Choanosome: Acanthostyles with heads embedded in basal spongin. Echinating tracts arise from here to surface. Surrounding tissue with loose megascleres and Anisochelae.
Distribution: Central to Northern California.
Depth: Intertidal to deep water, 79 meters.
Note: Northwest Pacific specimens tend to have higher means and upper ranges for all spicules. Was Hymdesanisochela rayae.
[B] GO TO PAGE 181
Microscleres OTHER THAN Anisochelae ONLY.
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