Species Overview

130
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Myxilla (Myxilla) incrustans (Johnston, 1842) [of Bakus, 1966] .

Synonyms:

SPONGE:
Shape: Thin encrusting to massive
Size_Thickness: 2.5 - 8 cm
Color_Alive: Gold to light gold or brown with tinge of rose or yellow
HABITAT:
Benthic Region: Marine: Intertidal; Subtidal; Deep water: On Chlamus spp. or free living
Distribution: California

CHARACTERS

Surface:
Texture: slightly rough
Contour: warty to rugose amorphous and fistulate
Skeleton:
Composition: Silicate
Architecture: Moderately dense isodictyal reticulation of Acanthostyles with tracts of tightly bound Acanthostyles and Tornotes arisingfrom the choanosome and penetrating the surface
Oscula:
Density: abundant
Diameter: 0.3 -- 4.0 mm
Ectosome:
Dermal membrane: Obvious with numerous irregularly distributed Tornotes parallel to surface
Choanosome:
Architecture: Moderately dense isodictyal reticulation of Acanthostyles with tracts of tightly bound Acanthostyles and Tornotes arisingfrom the choanosome and penetrating the surface
Megasclere:
Shape: Acanthostyles
Length: 104 -(160|221)- 248 Ám
Width: 6 -(7|12)- 14 Ám
Megasclere:
Shape: Tornotes
Length: 116 -(138|184)- 265 Ám
Width: 2-(4|5)- 6 Ám
Microsclere:
Shape: Anchorate Isochelae
Length: 11 -(13|21)- 26 Ám
Microsclere:
Shape: Anchorate Isochelae
Length: 27 -(37|52)- 59 Ám
Microsclere:
Shape: Sigmas
Length: 12 -(15|27)- 34 Ám
Microsclere:
Shape: Sigmas
Length: 31 -(37|43)- 54 Ám