Identifying Sponges

Key to California Porifera (Page 231)

( From page 230 B) Sponge cylindrical, Microxeas absent.
[A]
Sponge cylindrical, 10-30 x 3-7 mm.
Megascleres Oxeas, Triradiates and Quadriradiates.
NAPATT.jpg
Sycon ciliatum (Fabricious, 1780) [as Sycon coronatum of de Laubenfels, 1932]
Sponge: Cylindrical (non-colonial) 10 - 30 x 3 - 7 mm. Oscula: oscular crown with spicular fringe.
Color: White ?Alive.
Spicules: Megascleres: (1) Oxeas: 1 - 2 mm. x 0.02 mm. (2) Triradiates/Quadriradiates (rays): 0.14 mm. x 0.007 mm. regular or saggital or alate.
Skeleton: Syconoid.
Distribution: California?
Depth: ?
Note: Present status unclear and not seen in California by de Laubenfels, 1932, or since initial report from California by Haeckel, 1872. Equals Sycon coronatum of de Laubenfels, 1932.
[B]
Sponge cylindrical 0.05 - 0.1 mm thick x 2 - 4 mm long.
Megascleres Quadriradiates ONLY.
Guancha macleayi (Lendenfeld, 1885)
Sponge: Hollow cylinders 0.05 - 0.1 mm thick by 2 - 4 mm long. Tubular and solitary or groups of tubes growing from a common stalk. Consistency: fragile. Surface: hispid.
Color: White ?Alive.
Spicules: Megascleres: (1)Quadriradiates: to 80 um.
Skeleton: Asconoid.
Distribution: ? Southern California.
Depth: ?
Note: Reported by de Laubenfels, 1932 from southern California as Leucosolenia macleayi but now considered as Guancha macleayi (Lendenfeld, 1885). Originally described from Australia. Yet another example of the confusion surrounding California Calcarea.
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