Identifying Sponges

Key to California Porifera (Page 011)

( From page 009 B) Megascleres do NOT include Acanthostyles.
[A] GO TO PAGE 012
Sponge surface usually smooth and with NO nipple-like protuberences or papillae. Megascleres distinct Tylostyles ONLY, OR may ALSO contain Tylostrongyles. Strongyles (often centrotylote) may occur as microscleres.
[B] GO TO PAGE 020
Sponge surface usually hispid with nipple-like protuberences OR a few papillae.Megascleres: Styles to Tylostyles OR Styles, and Subtylostyles to Tylostyles.
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