Identifying Sponges

Key to California Porifera (Page 103)

( From page 102 B) Additional, poorly described species in this series.
[A]
Oxeas 182 μm.
NAPATT.jpg
Haliclona sp. B Bakus & Green, 1987
Sponge: No information given.
Color: No information given.
Spicules: Megascleres: (1) Oxeas: 182 um. x 30 um.
Skeleton: One spicule thick isodictyal reticulation.
Distribution: Santa Rosa Id. Southern California.
Depth: 29 m.
Note: Insufficient information to allow for accurate identification. No illustrations available.
[B]
Oxeas 134-169 μm.
Haliclona (Rhizoniera) sp. [of de Laubenfels, 1932]
Sponge: Encrusting to 3 cm. Thick. Consistency: Soft, fragile. Surface: superficially very porous, crowded with depressions about 200 μm in diameter. Oscula: conspicuous with raised, crater-like rims, 2-5 mm diameter.
Color: Lavender, drab-brown.
Spicules: Megascleres: (1)Oxeas : 135 -149- 169 um. x 4.0 -5.5-9.7 um.
Skeleton: Ectosome: inconspicuous. Fleshy dermal membrane. Choanosome: Isodyctyal reticulation with a few vague spicular tracts.
Distribution: Central California- ? Southern/Northern California.
Depth: Intertidal.
Note: This species was erroneously identified by de Laubenfels as Haliclona cinerea (Grant, 1862). Recent review by De Weerdt has shown that H. cinerea is a valid species but one that is restricted to the North Eastern Atlantic Ocean. This de Laubenfels species is NOT H. cinerea but a new species which needs to be described as such.
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