Species Overview

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Halichondria (Halichondria) panicea (Pallas, 1766)

Synonyms:

SPONGE:
Shape: Encrusting; sometimes more massive
Color_Alive: Chrome yellow; yellow-tan;in well-lighted situations- olive or green at surface
HABITAT:
Benthic Region: Marine: Intertidal; Subtidal; Deep water
Depth: --113 m
Distribution: Southern California to Northern California
Habitat: On open coast.

CHARACTERS

Pores:
Distribution: closely spaced in areas between tracts
Skeleton:
Composition: Silicate
Architecture: Typical halichondriid structure
Ectosome:
Architecture: irregular and indistinct meshwork formed of loose bundles of spicules and of individual spicules mixed with occasional tracts
Megasclere:
Shape: Oxeas
Length: 160 -313- 420 Ám
Width: 1 -5- 12 Ám
Surface:
Apparence: Opaque
Oscula:
Visible: Obvious
Distribution: Rows of oscules borne on ridges
Rim: May have tube-like oscules
Choanosome:
Color: yellow
Ectosome:
Color: light greenish
Architecture: Regular loose reticulation of multispicular tracts; Tangential skeleton not easily removed