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Lined wrasse
Lined wrasses are orange-brown in colour with pale longitudinal blue-green lines. Their heads have irregular light blue-green lines.They have opercular flaps with black spots and caudal fins with broad black bars on the posterior part of the fin. Females are distinguished by the white versus yellow band on the base of the tail and males by the lined versus spotted pattern on the body.Lined wrasses inhabit coastal slopes and drop-off areas in small groups and can be found at depths between 20-45m.Picasso triggerfish
The Picasso triggerfish is a robust, grey fish with a unique, notable pattern of stripes giving it the distinct appearance of a painter's colour palette - hence its name after the famous painter Pablo Picasso.
Atlantic horseshoe crab
The Atlantic horseshoe crab lives in the shallow waters of the north-western Atlantic Ocean and the Gulf of Mexico, and in brackish coastal lagoons, where it can reach lengths of up to 60cm.
Red tjor-tjor
Red tjor-tjor are small pink fish of the porgy family that develop rows of reflective blue dots along their flanks as they mature.
Smooth flutemouth
The smooth flutemouth is a very elongated fish that has a long filament projecting from its forked tail fin.
Bignose unicorn
The bignose unicorn is a large member of the surgeonfish family and, although it is a unicornfish, it does not have the characteristic "horn" seen in many other species.
Feather-duster anemone
The feather-duster anemone, a foreigner in South African waters, appears in various forms with a base wider than its column.
Schooling coachman
The schooling coachman is a white fish with two broad vertical black bars - one running across its pectoral fin to the front of its dorsal fin and the other from the tip of its ventral fin to just behind its dorsal fin.
Bellowsfish
The crested bellowsfish is notable for its unusual body shape - round and flattened with an elongated snout and a thick, elongated first dorsal spine which points backwards. Its body is orange, often mottled with white stripes and blotches. It has large eyes, which are positioned close to the base of its snout.It inhabits the temperate waters of the southern oceans, most notably around Tristan da Cunha and Gough Island as well as the coasts of Australia and New Zealand. At least one sighting places them in South African waters too.It is a demersal species, living close to the seafloor at depths of up to 600m. It has not been studied enough to identify its prey, but other species of bellows fish feed on plankton and tiny bottom-dwelling crustaceans.The specimens at the Aquarium are from the island of Tristan da Cunha, where they are regularly caught in crayfish traps.Serpent-skinned brittle star
The serpent-skinned brittle star has a flat, disc-like body with file long, spindly arms extending outward from the edge of the disc.
Crystal jelly
Compared to the generic "jellyfish-shape" most are familiar with, the crystal jelly is flattened and saucer-shaped. It can grow up to 60cm wide.
White sea catfish
The white sea catfish is a robust fish with a dark dorsal surface and sides, but with a notably pale white belly. Its body is completely scaleless and is slimy to the touch - it is covered in a protective layer of mucus.