obelia, Obelia dichotoma (Linnaeus, 1758) (Cosmopolitan. Alien, introduced on ships) Obelia geniculata (Linnaeus, 1758) (Luderitz to Cape Agulhas) Family Halopterididae Fine hydroid, Corhiza scotiae (Ritchie, 1907) (whole coast) Snowdrop hydroid, Gattya humilis Allman, 1886 (northern Namibia to KwaZulu-Natal) Family Kirchenpaueriidae Feathery hydroid, Pycnotheca mirabilis (Allman, 1883) (False Bay to KwaZulu-Natal) Kirchenpaueria pinnata (Linnaeus, 1758) *Namibia to KwaZulu-Natal) Family Plumulariidae Plumed hydroid, little sea bristle, Plumularia setacea (Linnaeus, 1758) (whole coast) Family Sertulariidae Jointed hydroid, Thuiaria articulata (Pallas, 1766) (whole coast) syn, Salacia articulata Planar hydroid, Sertularella arbuscula (Lamouroux, 1816) (Saldanha Bay to southern Mozambique) Wiry hydroid, Amphisbetia operculata (Linnaeus, 1758) (Luderitz to Durban) Order Siphonophorae Family Apolemiidae String jelly, barbed wire jellyfish, Apolemia uvaria (Lesueur, 1815) (pelagic, worldwide) Family Forskaliidae Net jelly, Forskalia edwardsi (Kolliker, 1853) (pelagic, worldwide) Family Physaliidae Bluebottle, Portuguese man-of-war, Physalia utriculus (La Martiniere, 1787) (pelagic, whole coast) Ctenophora – comb jellies Order Beroida Family Beroidae Cigar comb jelly, Beroe cucumis spp. (pelagic, worldwide) Order Cestida Family Cestidae Venus' girdle, Cestum veneris Lesueur, 1813 (pelagic, worldwide) Order Cydippida Family Pleurobrachiidae Sea gooseberry, Pleurobrachia bachei Agassiz, 1860 (pelagic, worldwide) Order Lobata Family Bolinopsidae Lobed comb jelly, Leucothea spp. (pelagic, worldwide) Worms Platyhelminthes – flatworms Order Polycladida Family Pseudocerotidae Carpet flatworm, Thysanozoon brocchii (Risso, 1818) Grube, 1840 (Cape Peninsula to Port Elizabeth) Incertae sedis Acoel flatworm, sponge flatworm. Undescribed. (Both sides of the Cape Peninsula) Striped flatworm. Undescribed. (Cape Peninsula and Port Elizabeth) Freckled flatworm. Undescribed. (Both sides of the Cape Peninsula) Polychaeta – bristleworms, annelids Order Eunicida Family Eunicidae Wonder worm, Bobbit worm, Eunice aphroditois (Pallas, 1788) (Luderitz to Sodwana Bay) Order Myzostomida Family Myzostomidae Crinoid worm, Myzostoma fuscomaculatum Lanterbeque, 2008 (False Bay) Order Terebellida Family Cirratulidae Black boring worm, Dodecaceria pulchra Day, 1955 (Luderitz to Port Elizabeth) Orange thread-gilled worm, Cirriformia capensis (Schmarda, 1861) syn. Timarete capensis, Cirratulus capensis, Cirratulus australis Stimpson, 1856 (Angola to Durban) Family Terebellidae Sand mason, lollipop worm, Lanice conchilega Pallas, 1766 (False Bay to Port Elizabeth, also northern oceans) Tangleworms family Terebellidae Mamlgren, 1867 (whole coast) Order Sabellida Family Sabellidae Branchiomma natalensis (Kinberg, 1866), (Luderitz to Cape Point) Branchiomma violacea (Schmarda, 1861), (Walvis Bay to Durban) Feather-duster worm, Pseudobranchiomma longa (Kinberg, 1866) syn. Sabellastarte longa (Cape Peninsula to Mozambique) Peacock fanworm, pencilworm, Sabella spallanzanii (Gmelin, 1791) syn. Sabella penicillus (as S. penicillus, False Bay to southern KwaZulu-Natal) Gregarious fanworm, Pseudopotamilla reniformis (Muller, 1771) (Port Nolloth to southern Mozambique) Family Serpulidae Spiral fanworms