| A | B |
|---|
 | Avrainvillea sp. Fan-shaped; leathery, spongy |
 | Caulerpa racemosa; "stalks' clublike or round |
 | Caulerpa sertularioides; branching stalks |
 | Chnoospora minima; branched; small tufts of hair |
 | Cladophora: Tangles grass like mat. Firm or soft branches. |
 | Codium arabicum: flattened bumpy mat |
 | Codium edule: creeping branches, clumped |
 | Crustose Coralline Algae (CCA): Crust on rock or dead coral: pink red or purple |
 | Dictyosphaeria cvernosa: hollow bubbles |
 | Dictyosphaeria versluysii |
 | Dictyota acutiloba: spiral branches no shimmer |
 | Dictyota sandvicensis: frilly edges; yellow/green shimmers in water |
 | Gracilaria salicornia: smooth stiff braces; jointed; highly invasive |
 | Halimeda discoidea: clusters of flattened discs; stiff |
 | Hydroclathrus clatheratus: swiss cheese algae |
 | Laurencia dendroidea: rounded tips, L shaped branching- varying bright colors |
 | Laurencia mcdermidiea rounded tips, L shaped branching - bright green |
 | Lyngbya majuscula: Cyanobacteria; coarse, fizzy, dirty hair like tufts |
 | Microdictyon setchellianum: flat, coarse, crunchy mesh |
 | Neomeris: worm-like 2-3 cm tall |
 | Padina spp: ear like; calcified bands |
 | Palisada parvipapillata: flat, bumpy branches |
 | Sargassum aquifolium: wide stiff leaves with spiny edges |
 | Sargassum polyphyllum: thin frilly leaves with wavy edges |
 | Turbinaria ornata: spiky, club-like, stiff |
 | Ulva: thin greet sheet or tube |
 | Ulva sp. thin, light green tubes |
