[A]
Rhaphides present, in bundles. |
| | Biemna rhadia
de Laubenfels, 1930 |
Sponge:
Amorphous to 7 mm high.
Consistency: Fragile.
Oscula: Not seen..
Color: Dry: Drab.
Spicules: Megascleres:
(1) Styles:
600 -932- 1305 um.
x 20 um.
Microscleres:
(1) Sigmas:
13 -15- 25 um.
(2) Sigmas:
29 -50- 91 um.
(3) Sigmas:
260 -280- 330 um.
(4) Rhaphides:
90 -168- 210 um.
Skeleton:
Detachable dermal membrane with microscleres only.
Choanosome with thick ascending, branched tracts, cored by densely packed styles.
Distribution: Southern to Northern California.
Depth: Intertidal to deep water, 700 m.
Note: Small spheres were reported by de Laubenfels but have not been reported since.
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Rhaphides NOT present.
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