Point to Jeffreys Bay) Pierre's armina, Armina sp. (False Bay) White-ridged nudibranch, Dermatobranchus sp. 1 (Atlantic coast Cape Peninsula and Port Elizabeth) Brown ridged nudibranch, Dermatobranchus sp. 4 (both sides Cape Peninsula) subclade Cladobranchia Family Lemindidae Frilled nudibranch, Leminda millecra Griffiths, 1985 (Cape Peninsula to KwaZulu-Natal) Family Proctonotidae Cape silvertip nudibranch, Janolus capensis Bergh, 1907 (Saldanha Bay to East London) Medallion silvertip nudibranch, Janolus longidentatus Gosliner, 1981 (False Bay) Nippled nudibranch, Janolus sp. (South Paw, off Clifton, Cape Peninsula) Gasflame nudibranch, Bonisa nakaza Gosliner, 1981 (Atlantic coast Cape Peninsula to Port Elizabeth) subclade Aeolidida – aeolid nudibranchs Family Flabellinidae White-edged nudibranch, Flabellina capensis (Thiele, 1925) (Atlantic coast Cape Peninsula to Port Elizabeth) Purple lady nudibranch, Flabellina funeka Gosliner and Griffiths, 1981 (Cape Point to Port Elizabeth) Flabellina sp. 1 (both sides Cape Peninsula) Flabellina sp. 2 (western False Bay: Windmill and Dassie Point) Family Eubranchidae Eubranchus sp. 1 (both sides Cape Peninsula) Eubranchus sp. 2 (False Bay to Knysna) Fireworks nudibranch, Eubranchus sp. 4 (near Vulcan rock, south of Hout Bay) Candelabra nudibranch, Eubranchus sp. 5 (False Bay) Family Embletoniidae Embletonia gracilis Risbec, 1928 (western False Bay, also Japan, New Caledonia, Australia and Hawaii) Family Tergipedidae Candy nudibranch, Cuthona speciosa (Macnae, 1954) (Atlantic coast Cape Peninsula to Port Elizabeth) Cuthona sp. 1 (both sides Cape Peninsula) Cuthona sp. 2 (both sides Cape Peninsula) Tergipes tergipes Forskal, 1779 (both sides Cape Peninsula, widespread in the Atlantic Ocean) Catriona casha Gosliner & Griffiths, 1981 (Langebaan Lagoon to Knysna) Catriona columbiana (O'Donoghue, 1922) (Cape Town Harbour, Pacific coast of North America and Japan) Family Facelinidae Olive nudibranch, Facelina olivacea Macnae, 1954 (Saldanha Bay to Cape Town Harbour, Knysna and Jeffreys Bay) Black-dot nudibranch, Caloria sp. 1 (both sides Cape Peninsula) Yellow-tipped nudibranch, Caloria sp. 2 (both sides Cape Peninsula) Coral nudibranch, Phyllodesmium horridum (Macnae, 1954) (False Bay to Sodwana Bay, also Japan and Australia) Night sky nudibranch, Amanda armata Macnae, 1954 (both sides Cape Peninsula and False Bay) Orange-eyed nudibranch, Cratena capensis Barnard, 1927 (Saldanha Bay to Port Alfred) Elegant nudibranch, Cratena sp. 1 (False Bay to Plettenberg Bay) Family Glaucidae Four-colour nudibranch, Godiva quadricolor (Barnard, 1927) (Bloubergstrand to East London, also Ghana) Family Aeolidiidae Indica nudibranch, Anteaeolidiella foulisi (Bergh, 1888) syn. Anteaeolidiella indica, Aolidiella indica (Saldanha Bay to southern KwaZulu-Natal, circumtropical) Sea swallow, Glaucus atlanticus Forster, 1777 (False Bay to KwaZulu-Natal, circumtropical) Bivalvia Order Mytilida Family Mytilidae Ribbed mussel, Aulacomya ater (Molina,