Identifying Sponges

Key to California Porifera (Page 070)

( From page 067 B) Microscleres DO NOT include Sigmas.
[A]
Microscleres include Palmate Isochelae, Toxas, and sometimes J-shaped microscleres, but NOT Spirasters OR Streptasters.
cc070A.jpg
Antho (Antho) jia (de Laubenfels, 1930)
Sponge: Encrusting to 8 mm thick. Consistency: fragile. Surface: uneven, hispid. Oscula: and pores not evident.
Color: Alive: Drab, dull orange.
Spicules: Megascleres: (1) Tylostyles: 330 um. (2) Styles -smooth or with a few spines: 340 - 415 um. x 18 - 33 um. Microscleres: (1) Palmate Isochelae: 24 - 29 um. (2) Toxas: 145 - 190 um. (3) J-shaped microscleres - Crocae: 16 - 17 um.
Skeleton: Ectosome vague, dermal membrane present. Choanosome: Confused renieroid reticulation.
Distribution: Central California.
Depth: Deep water, 700 m.
Note: Was Jia jia.
[B] GO TO PAGE 071
Microscleres include Spirasters or Streptasters ONLY.
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