Species Overview

Amphimedon trindania (Ristau, 1978)

SPONGE:

Shape: Encrusting
Size_thickness: 4--12 mm
Color_Alive: Dark brown to cinnamon
Color_Preserved: dark brown to cinnamon
Consistency: firm and hard -slightly compressible

SPONGE:

Shape: erectly lobate
Size_Volume: 8 x 3 x 5 cm
Color_Alive: Dark brown to cinnamon
Color_Preserved: dark brown to cinnamon
Consistency: firm and hard-slightly compressible

HABITAT:

Benthic Region: Marine: Intertidal to Subtidal
Depth: 0--38 m
Distribution: Central California

Surface:

Texture: slightly hispid
Contour: somewhat conulose

Oscula:

Diameter: 1.5--5.0 mm
Rims: flush with surface
Distribution: either in defined lineations or spread over surface

Ectosome:

Architecture: No easily seen special ectosomal skeleton

Choanosome:

Architecture: a reticulation of large multispicular tracts and spicules in confusion
Major tracts: 100 - 160 mm wide.
Meshes: 200-800 x 100-400 mm.
Spicules: Interstitial Oxeas smaller than those in tracts

Megasclere:

Shape: Oxeas
Length: 115 - -200
Width: 2 - -8 µ

Megasclere:

Length: 240 - -260 µ
Width: 18 - -20 µ

Skeleton:

Composition: Silicate