Species Overview

200
KeyPics/cc199A.jpg

Tetilla mutabilis de Laubenfels, 1930.

Synonyms:

SPONGE:
Shape: Pedunculate-clavate to irregularly massive
Size_height: to 8 cm
Color_Alive: Dull red with green patches
Color_Preserved: Dull red
Consistency: spongy to cartilaginous
HABITAT:
Benthic Region: Marine: Subtidal to Deep water
Distribution: Southern California to ?Central California

CHARACTERS

Skeleton:
Composition: Silicate
Architecture: In Clavate form -a central axis of packed spicules. This surrounded by large chambers with the outer walls with spicules in confusion. In massive forms-no central core.
Surface:
Texture: superficially hirsute with repent exceedingly thin spicules matted together
Oscula:
Shape: oval
Rims: flush
Megasclere:
Shape: Prodiaenes/Protriaenes
Rhabd diameter: 1 -- 6 Ám
Clad length: 30 - 90]- Ám
Megasclere:
Shape: Oxeas with filiform tip
Length: -2000- Ám
Width: -9- Ám
Megasclere:
Shape: Anatriaenes (rare)
Rhabd diameter: 3 -- 7 Ám
Clad length: 20 -- 30 Ám
Chord length: 30 -- 40 Ám
Ectosome:
Architecture: Packed with Protriaenes;clads outward;arranged in non-erect brushes
Choanosome:
Architecture: In Clavate form -a central axis of packed spicules. This surrounded by large chambers with the outer walls with spicules in confusion. In massive forms-no central core.