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Blue Dragon Nudibranch
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Summary
The Blue Dragon Nudibranch resembles a frilled tiny lizard. It reaches only 10 mm in length and has 3 pairs of fan-like finger-like appendages called cerata. The species is found throughout the Pacific Ocean.
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Giant Whelk or Australian False Trumpet
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Summary
The Giant Whelk is the world’s largest snail. This enormous marine gastropod can grow to a shell length of 70 cm. They are predatory snails and feed on large tube-dwelling polychaete worms. It occurs from the intertidal zone down to 50 metres water depth and has a range across the northern half of the Australian coastline extending into southern New Guinea and Indonesia.
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Toenail Egg-cowrie
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Summary
The Toenail Egg-cowrie is common in intertidal and shallow subtidal areas, grows to about 35 mm long, and has a solid, oval and broad shell. It is found in Queensland and New South Wales coasts.
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Variable Mitre
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Summary
The Variable Mitre is one of the commonest mitre snails (family Mitridae) from the Indo-Pacific region and often encountered both intertidally and subtidally, normally hiding under large rocks or dead coral slabs. It is found in subtropical and tropical Australia.
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Zebra Volute
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Summary
The Zebra Volute lives in shallow, usually subtidal sand banks where it seeks out other snails and clams for food. The striped colour pattern on the shell (length to 50mm) gives the species its common name, but there are several other species of Australian volute which likewise have striped shells. It is found in Queensland to New South Wales only.
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Red-mouthed Stromb
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Summary
The Red-mouthed Stromb is one of the most abundant and widespread of the Indo-Pacific stromb species. This species can be very common at certain muddy-sand, seagrass and lagoonal localities and is a prized food in many parts of Melanesia, and hence harvested commercially.
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Textile Cone
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Summary
The Textile Cone shell has an irregular shingle-like pattern. It feeds on other molluscs which it immobilises by injecting a powerful venom with a harpoon-like tooth. The species is found in tropical waters of the Indo-west Pacific.
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Gold-ring Cowrie
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Summary
The Gold-ring Cowrie grows only to about 30 mm long, and is abundant on eel grass flats in sandy-mud or sand, from the intertidal to the shallow subtidal zones, and in pools on ocean reef platforms. It is common across northern Australia and throughout the Indian and West Pacific Oceans.
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Jukes' Keyhole Limpet
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Summary
Jukes' Keyhole Limpet is one of the most common marine snails along the northern coast of Australia. It has strong ribbing and is mostly associated with subtidal rocky reefs and rock platforms.
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Purple-mouthed Kookaburra Whelk
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Summary
The Purple-mouthed Kookaburra Whelk is so named because of its striking profile resemblance to a perched kookaburra and the purple tinge around the aperture. In reality it is actually a species of triton - Family Cymatiidae. The species is distributed across the Indo-West Pacific.
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Leaden Sand Snail
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Summary
The Leaden Sand Snail is one of the largest, most common sand snails found on sand-and mud-flats along the eastern and southern coasts of Australia. It produces large crescent-shaped jelly-like egg masses.
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Lined Nerite
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Summary
The Lined Nerite is characterised by its finely grooved shell. This species of Nerite snail lives in association with mangrove trees. It is found in Tropical Australia.
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Nudibranchs
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Summary
Nudibranchs (naked-gilled sea-slugs) and marine flatworms include some of the most colourful and beautiful of sea creatures. Many have bright and elaborate colour patterns as spectacular as those seen in some butterflies.
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Estuarine Stonefish
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Summary
Stonefish are the most venomous of all fishes. They are found throughout shallow coastal waters of the northern half of Australia. Stonefish are extremely well camouflaged and often almost indistinguishable from their natural surrounds. The venomous dorsal fin spines can cause extremely painful wounds and other serious medical issues.
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Bullrout
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Summary
Bullrout are responsible for most fish stings that occur in upper tidal reaches and freshwaters of New South Wales and Queensland. The venomous fin spines can cause painful wounds. They are an ambush predator of small fish and crustaceans, hiding amongst snags and aquatic plants.
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Amethyst Olive
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Summary
The Amethyst Olive is one of the commonest and most widespread of the olive snail family (Olividae). This species is found buried in subtidal sandy areas especially associated with coral reefs and lagoons in subtropical and tropical Australia.
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Golden Orb-Weaving Spiders
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Summary
The three species of Golden Orb-Weaving Spiders found in Queensland (in the genera Trichonephila and Nephila) are familiar denizens of urban environments throughout the state. The most commonly encountered species, Trichonephila plumipes, is abundant in backyards in eastern Queensland, including around Brisbane.
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Common Garden Spiders
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Summary
Spiders are ubiquitous in gardens, houses and urban environments throughout Queensland, and a wide variety of species can easily be found, especially in the eastern tropics and subtropics. The species accounts below highlight some of the more frequently encountered species in Queensland backyards.
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Tent-Web Spiders
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Summary
Tent-Web Spiders (genus Cyrtophora) are found throughout eastern and tropical northern Australia, with three species often found in urban environments. The largest and most commonly encountered species, C. moluccensis, is abundant in backyards in eastern Queensland, including around Brisbane.
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Northern Green Jumping Spider
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Summary
The Northern Green Jumping Spider (Mopsus mormon) is one of Australia’s largest jumping spiders, and a common resident of backyards in tropical climates, including around Brisbane. The spiders are green throughout their lives, but adult males and females exhibit strong sexual dimorphism, with males characterised by a pronounced fringe of white ‘whiskers’.
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