Agardh (Tropical Australia south to Montebello Island, Western Australia, and southern Queensland. Also Lord Howe Island, and widespread overseas. Introduced into numerous estuaries in New South Wales and the Adelaide region.) Elliston caulerpa Caulerpa ellistoni Womersley (Rottnest Island, Western Australia, to Kangaroo Island, South Australia.) Fishbone caulerpa Caulerpa distichophylla Sonder (Dongara to Albany, Western Australia.) Bootstrap caulerpa Caulerpa filiformis (Suringar) Hering (Sydney to Port Stephens (New South Wales). Also South Africa.) Long-filament caulerpa Caulerpa longifolia C. Agardh (Eucla, Western Australia, to Wilsons Promontory, Victoria, and around Tasmania.) Fine-filament caulerpa Caulerpa longifolia (form crispata) (Harvey) Womersley (Perth, Western Australia, to Waratah Bay, Victoria, and around Tasmania.) Three-cornered caulerpa Caulerpa trifaria Harvey (Cottesloe, Western Australia, to Western Port, Victoria, and around Tasmania.) Brown's caulerpa Caulerpa brownii (C. Agardh) Endlicher (Perth, Western Australia, to Walkerville, Victoria, and around Tasmania. Also New Zealand.) Bushy caulerpa Caulerpa obscura Sonder (Yanchep, Western Australia, to Walkerville, Victoria, and northern Tasmania.) Fern caulerpa Caulerpa flexilis Lamouroux (Geraldton, Western Australia, to Collaroy, New South Wales, and around Tasmania. Also New Zealand.) Mueller's fern caulerpa Caulerpa flexilis var. muelleri (Sonder) Womersley (Geraldton, Western Australia, to Waratah Bay, Victoria, and northern Tasmania.) Hedley's caulerpa Caulerpa hedleyi Weber van Bosse (Rottnest Island, Western Australia, to Kangaroo Island, South Australia.) Bubble caulerpa Caulerpa geminata Harvey (Dongara, Western Australia, to Bowen, Queensland, and around Tasmania. Also New Zealand.) Amulet caulerpa Caulerpa hodgkinsoniae J. Agardh (Robe, South Australia, to Walkerville, Victoria, and around Tasmania.) Cactus caulerpa Caulerpa cactoides (Turner) C. Agardh (Geraldton, Western Australia, to Richmond R, New South Wales, and around Tasmania.) Tropical caulerpa Caulerpa racemosa (Forsskål) J. Agardh (Tropical Australia south to Albany, Western Australia, and to northern New South Wales. Also Lord Howe Island and widespread overseas.) Beaded caulerpa Caulerpa vesiculifera Harvey (Shark Bay, Western Australia, to Phillip Island, Victoria, and northern Tasmania.) Pimpled caulerpa Caulerpa papillosa J. Agardh (Recherche Archipelago, Western Australia, to Walkerville, Victoria, and northern Tasmania.) Simple-branched caulerpa Caulerpa simpliciuscula (Turner) C. Agardh (Dongara, Western Australia, to Walkerville, Victoria, and around Tasmania.) Family Bryopsidaceae Tufted bryopsis Bryopsis vestita J. Agardh (Cape Northumberland, South Australia, to Wilsons Promontory, Victoria, and around Tasmania. Also New Zealand.) Feather bryopsis Bryopsis gemellipara J. Agardh (Streaky Bay, South Australia, to Wilsons Promontory, Victoria, and around Tasmania.) Family Polyphysaceae Mermaid's cup Acetabularia calyculus Lamouroux (Tropical Australia south to Adelaide, South Australia, and to Newcastle, New South Wales. Also widespread overseas.) Green eyeballs Derbesia marina (Lyngbye)