Species Overview

Aplysilla glacilis (Dybowski, 1880).

SPONGE:

Shape: Encrusting
Size_Thickness: -3- mm
Color: Olive-tan; salmon pink or coral

HABITAT:

Benthic Region: Marine: Intertidal
Distribution: Central California

Skeleton:

Composition: Spongin
Architecture: Dendritic fibers arise from basal plate
Differentiation: Ectosome 8 µm

Surface:

Texture: Fleshy
Contour: conulose:conules 1-2 mm high/2-3 mm apart

Oscula:

Shape: round
Disrtibution: Scattered
Diameter: -1- mm
Note:: Oscula not evident as distinct from pores

Spongin:

Type: Primary fibers
Diameter: 80 -- 255 µ
Note:: NO inclusions and with concentric layers

Ectosome:

Dermis: Distinct
Thickness: -8- µ

Choanosome:

Architecture: Dense mass of flagellated chambers permeated by canals and dendritic fibers.Fibers arise from a basal plate