Identifying Sponges

Key to California Porifera (Page 094)

( From page 093 A) Tangential ectosomal skeleton present.
Color: pale lavender.
Oxeas 105-122 μm.
Haliclona (Halichoclona) gellindra (de Laubenfels, 1932)
Sponge: Encrusting 2 - 4 mm thick. Consistency: fragile. Surface: superficially smooth. Oscula: few and irregular in shape, 1 mm in diameter, often with raised collars to 1 mm high.
Color: Alive: Pale lavender. Preserved: Cream.
Spicules: Megascleres: (1) Oxeas: 105 -112- 122 um. x 3.0 -6.2- 6.9 um.
Skeleton: Ectosomal tangential skeleton, to 20 μm. A crust of tangetial Oxeas. Choanosome, dense confused subisotropic reticulation of Oxeas with apices of spicules united by spongin.
Distribution: Central California.
Depth: Intertidal.
Note: Was Halichoclona gellindra.
Color: white.
Oxeas : 120 - 140 μm.
Haliclona (Haliclona) sp. (Klontz, 1989)
Sponge: Encrusting, compact to 1 cm thick. Surface: smooth. Oscula: round, 1 - 1.5 mm in diameter, scattered and range from flush to raised. Ostia scattered.
Color: Alive: White.
Spicules: Megascleres: (1)Oxeas: 120 - 140 um.
Skeleton: Tangential ectosomal skeleton near isodictyal, with square to triangular meshes, 1 - 4 spicules thick. Choanosome with pauci- to multispicular tracts to the surface with single spicule cross-bracing.
Distribution: Central California, Farallon Ids.
Depth: Intertidal.
Note: This species was originally reported as Adocia. It has not been reviewed since 1989. Since then Adocia has been synonomized with Haliclona (Haliclona) by deWeerdt, 2002. A thorough review is necessary to assure the placement of this species.
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