Species Overview

Farrea mexicana Wilson, 1904.

DEFINING CHARACTERS:

Shaft of Anchorate Clavule with a few large thorns.
Terminal claws of Anchorate Clavules NOT twisted in a spiral around shaft.

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SPONGE:

Shape: A network of branching and anastomosing tubes
Size_diameter_tubes: -8- mm
Color: not reported

HABITAT:

Benthic Region: Marine: Deep water.
Distribution: Southern California.

Skeleton:

Composition: Silicate (hexactin)
Architecture: Rigid framework is one layer thick at margins.

Megasclere:

Shape: Uncinates
Length: 910 -1510- 2960 µ

Mesosclere:

Shape: Pentactins
Length-tangential ray: 180 - 255 - 327 µ
Length-proximal ray: 151 -212- 284 µ

Mesosclere:

Shape: Pileate Clavules
Length: 220 - 297- 378 µ

Mesosclere:

Shape: Anchorate Clavules
Length: 225 - 355- 622 µ

Microsclere:

Shape: Oxyhexasters
Diameter: 97 -126- 165 µ