Identifying Sponges

Key to California Porifera (Page 229)

( From page 228 A) Sponge tubular, cylindrical (columnar), flask OR vase-shaped; NO stalk
Sponge tubular.
Sycon spp. (Hartman, 1975)
Sponge: Tubular. Surface: hispid. Oscula: with or without spicule fringe.
Color: Alive: Tan to white.
Spicules: Megascleres: Triradiates and Quadriradiates.
Skeleton: Consisting of three layers: cortical, tubar, (triradiates arranged in a series of circles around the chamber wall), and gastral quadriradiates with one ray extending into the spongocoele.
Distribution: California.
Depth: ?
Note: A difficult group with central atrial tube surrounded by perpendicular regularly arranged radial tubes, these partially or fully coalescent. Numerous species within this genus appear to be present in California but they have not yet been described. See Hooper & Van Soest, 2002, Vol. 2, pg. 1162.
[B] GO TO PAGE 230
Sponge NOT tubular.
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