How to Tell Apart Mini-guide << view all mini guides S E A W E E D Download PDF Ectocarpus spp. Pylaiella spp. 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 Membranoptera fabriciana vs. Euthora cristata by Jordan Chalfant Mini Guide Common Brown Seaweed Blades: Part 4 by Jordan Chalfant