Species Overview

193 506
KeyPics/cc193A.jpg

Hymedesmia (Hymedesmia) sp. B Klontz, 1989.

Synonyms:

SPONGE:
Shape: Thinly encrusting
Size_thickness: to 2 mm
Color_alive: Bright red
HABITAT:
Benthic Region: Marine: Intertidal
Distribution: Southern California

CHARACTERS

Ectosome:
Architecture: Tightly packed Subtylotes perpendicular to and often protruding through the dermal membrane.
Choanosome:
Architecture: Acanthostyles with heads embedded in basal spongin and forming echinating branching tracts which rise to the surface. Isochelae not abundant.
Skeleton:
Composition: Silicate
Architecture: Acanthostyles with heads embedded in basal spongin and forming echinating branching tracts which rise to the surface. Isochelae not abundant.
Megasclere:
Shape: Acanthostyles
Length: 112 -206- 360 Ám
Width: 8.0 -8.9- 12 Ám
Megasclere:
Shape: Subtylotes - Tylotes
Length: 149 -206- 239 Ám
Width: 4.0 -4.8- 6.0 Ám
Microsclere:
Shape: Arcuate Isochelae
Length: 18 -- 31 Ám