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The baardman, sometimes called the slender baardman, is a dark brown fish, with a curved dorsal fin and short barb on the bottom of its chin. As a juvenile it displays large white patches on its dorsal surface that darken with age. The baardman hunts invertebrates, such as polychaete, worms on sandy sea floors. The baardman inhabits the western Indian Ocean, feeding on ocean-floor invertebrates. It is a resident species, rarely venturing far from its home territory – it often establishes a home cave in limestone or sandstone reefs. The baardman is on the WWF SASSI Red list.

The Jacopever is a distinctive fish, its colour is highly variable, usually with pink-red blotches and irregular dark patches that form excellent camouflage in deep water. Their short, but stock bodies are protected by sharp spines along their dorsal fins and pectoral fins. It is an ambush predator that uses its cryptic colouration and the darkness of the depths at which it lives to ambush smaller fish and invertebrates that swim past it. Its spines contain venom that is used to protect the jacopever from larger predators. Venom is known to be harmful to humans. This fish lives at great depths on sandy continental slopes, ranging from 50m to over 1km in water depth. Jacopevers are widely distributed throughout the Atlantic, ranging from South Africa to Venezuaela, Iceland and the Mediterranean Sea. The jacopever is listed as Least Concern by the IUCN. Due to its procurement as bycatch of unsustainable trawling methods, this is a SASSI Red listed species in South Africa and should not be eaten.

The Cape knifejaw is a dark, oval shaped fish that can grow to almost a meter in length. Their colouration is generally a dark grey, with lighter coloured mouths and underparts. Juvenile Cape knifejaws are bright yellow, with black, vertical bands over their eye and in front of their tail. The knifejaw’s teeth are fused to form a beak-like structure. They are omnivores and feed on a variety of food sources around near-shore reefs. Their beak is used to break up sea squirts, sponges and red algae. Cape knifejaws become territorial when they mature and form pairs that hunt together. The Cape knifejaw is endemic to South Africa, ranging from False Bay to Thukela. Cape knifejaws are on the SASSI Red list.

The boxy is a boxfish - a group of fish notable for their compact, armoured bodies with fused scales and lack of dorsal fins. The boxy itself does not have any spines or spikes (common in other boxfishes). Females are bright yellow and males are blue-green. Males and females have a single white spot on each scale, ringed with black spots. Juveniles are yellow and have only black spots.The boxy is primarily an algae eater, feeding on seaweeds. However, it will opportunistically feed on sea sponges and shellfish if available.The boxy has a potent defense mechanism - when threatened or stressed they are able to release a poison from their skin that is deadly to marine fish (and often to the boxy itself if it cannot flee).Boxies are solitary, and only congregate during seasonal breeding. Juveniles remain in small groups and hide amongst corals.Boxies inhabit coral reefs in the Indian and Pacific Oceans, and are common along the African east coast, extending south to Plettenberg Bay.

Short-spined urchins are large, well-rounded sea urchins, completely covered in short, white spines. Long tube-feet extend well beyond their spines.They inhabit beds of seaweed, where they use their tiny tube-feet to camouflage themselves by holding straps of seaweed, rocks or other debris over their bodies (as pictured). This behaviour gives them their international name of “collector urchin”.Short-spined urchins are opportunistic feeders, and feed voraciously on algae, seagrass and bacterial mats. Their behaviour is unaffected by the day-night cycle, and this is unusual amongst urchin species. This unusual behaviour has made short-spined urchins useful for rehabilitating coral reefs which have been infested by alien seaweed species.These urchins are nutritious and edible – regularly preyed upon by humans, octopuses and puffer fish.

Birdmouth wrasses are small, elongated fish that display strong sexual dimorphism (males and females look different). Males are vivid blue-green with yellowed fins. Their snouts grow disproportionately long, often with bulbous protrusions. Females are significantly smaller, with comparatively drab colouration. They are yellow-brown with white underparts. Their snouts are also elongated, but more slender than the male’s. Birdmouth wrasses use their elongated snouts, which have small mouths on the end, to prey on small invertebrates in cracks and crevices. They are abundant around Indian Ocean reefs, particularly on the African coast.

The nosestripe clownfish is a small, oblong fish with a pale pinkish-orange colour. It has a single white stripe running along its back, from snout to tail.Nosestripe clownfish live in shallow reefs on the East African coast, Java and Thailand. They are immune to the sting of large anemones, and they will take shelter among anemone tentacles. Their preferred hosts are the magnificent anemone (Heteractis magnifica) and the Merten's carpet anemone (Stichodactyla mertensii).They are territorial and will defend their anemone from intruders - be they different species, or nosestripe clownfish from a different group. The female, which is the largest clownfish in the group, takes the lead in this defensive behaviour, responding to intruders by charging them and by making a series of loud noises.Nosestripe clownfish have three sounds in their vocal repertoire, a "pop, "short chirp" and "long chirp", and they use different combinations of these sounds depending on what species they are trying to ward off or how long the encounter lasts.Nosestripe clownfish are protandrous hermaphrodites. All are hatched male, and when occupying an anemone the largest one will changes sexes. If the female is removed or dies, the next largest male with change sexes and take her place.

The blotcheye soldier is a small, vividly red fish with large eyes, black gill covers and white edges on its fins. It also has small black spines on its gill covers.It is a nocturnal predator, and can be found hiding in caves and under ledges during the day. At night, its red colouration serves as camouflage in open water and it uses this element of surprise to hunt small crustaceans, zooplankton and fish.Blotcheye soldiers are found around coral reefs throughout the Indo-Pacific, particularly on the African east coast.

This cardinal is a small fish, characterized by four dark horizontal stripes on each side and a dark stripe along its dorsal surface. It has proportionately large eyes and mouth.Although solitary, striped cardinalfish temporarily form pairs during courtship. They are mouth-brooders – once fertilized, the male cardinal will carry the eggs in his mouth until they hatch.Striped cardinalfish are nocturnal, hiding in potholes on portions of reefs that are exposed to surge during the day. At night they scavenge and hunt small invertebrates.They inhabit coral reefs in the Indian Ocean, particularly the Red Sea and Sodwana Bay, with smaller populations on the Japanese and Australian coasts.

The ring-tailed cardinal is a small, yellow-copper fish with a large eye outlined by two vivid blue stripes which cross its face horizontally. It has a dark band around its peduncle. They form small schools near to coral and rock outcrops, often sharing dark hiding spots. When courtship occurs, ring-tail cardinals form pairs. They are mouthbrooders, with the male carrying the fertilized eggs in its mouth until they hatch. Although small, they are proficient predators, using caves to hide during the day and hunting under the cover of darkness. Ring-tail cardinals are a widespread species, ranging from South Africa and the East African coast to Japan and Australia.

Crown squirrelfish are bright red, with many silver stripes running horizontally across their bodies. They have pronounced spines in their fins and gill covers that they can raise if threatened. They are found in coral reefs, lagoons and rocky reefs throughout the Indo-Pacific, where they hide in caves. At night they use their red colour as camouflage in the darkness to hunt for zooplankton.

Redbarred cardinals are small, silver fish with fine orange bars running vertically on their sides. They have large, black eyes and black spots or bar on their peduncles.Their scientific name Taeniamia fucata literally means "ribbon fish that is iridescent", and it taken from both Latin and Greek.They inhabit rocky and coral reefs in calm waters, typically near lagoons or mangroves. They form large congregations that shelter in caves and under ledges, coming out at night to hunt small invertebrates.Although forming large groups, redbarred cardinals are solitary fish that only temporarily form pairs for courtship and spawning. They are mouthbrooders, and both males and females carry their eggs in their mouths until they hatch.Redbarred cardinals are common around reefs throughout the Indo-Pacific, ranging from Samoa to South Africa.