Species Overview

127 078
KeyPics/cc127A.jpg

Higginsia sp. Klontz, 1989.

Synonyms:

SPONGE:
Shape: Thinly encrusting
Size_Thickness: -- 5 mm
Color_Alive: Pale buff; tan
Color_ Preserved: Drab
HABITAT:
Benthic Region: Marine: Intertidal;Deep Water?
Depth: -379- m
Distribution: Central California.

CHARACTERS

Surface:
Texture: superficially smooth
Contour: may be ridged (these formed by spicule bundles angled to the surface) or rugose
Spicules: Long oxeas form brushes at surface
Ectosome:
Dermal membrane: often with sand grains
Spicules: Covers a dense layer of small Oxeas and Acanthoxeas
Choanosome:
Basal membrane with Tylostyle heads embedded:
Architecture: multispicular style tracts arise from basal membrane;160-200 Ám thick reaching near surface
Spicules: Acanthoxeas scattered in choanosome
Megasclere:
Shape: Tylostyles
Length: 1.16-(1.95|2.85)-3.36 mm
Megasclere:
Shape: Styles (rarely subtylostyles); heads bent
Length: 897 -(1001|1634)- 1879 Ám
Megasclere:
Shape: Oxeas
Length: 473 -(760|868)- 1818 Ám
Microsclere:
Shape: Centrotylote Oxeas
Length: 36 -(52|69)- 96 Ám
Microsclere:
Shape: Acanthoxeas
Length: 48 -(74|82)- 109 Ám
Skeleton:
Composition: Silicate
Architecture: multispicular style tracts arise from basal membrane;160-200 Ám thick reaching near surface