How to Tell Apart Mini-guide << view all mini guides S E A W E E D Membranoptera fabriciana Winged Weed Euthora cristata Crested Spermwell Download PDF Text by Jordan Chalfant Photos by Jordan Chalfant Design by Celeste Mittelhauser Share Related Mini Guides Mini Guide Common Brown Seaweed Blades: Part 3 by Jordan Chalfant Mini Guide Filamentous Brown Seaweeds vs. Tube-forming Diatoms by Jordan Chalfant Mini Guide Acrosiphonia genus vs. Cladophora genus by Jordan Chalfant