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Name Summary Subject categories
Day Octopus, Octopus cyanea. © Queensland Museum, Gary Cranitch. Cephalopods
This entirely marine class includes such familiar animals as the octopus, cuttlefish and squid and also the so-called ‘living-fossil’ Nautilus and the extinct ammonites. As the name suggests the limbs are closely associated with the head, and in most cephalopods these limbs (arms and tentacles) possess numerous suckers which help to secure prey. Many species of squid, octopus and cuttlefish are of major commercial importance (primarily as seafood).
Molluscs
Cephalopods
Giant Sentinel Crab, *Venitus latreillei*. Courtesy of Andrew Elliot. Giant Sentinel Crab
The Giant Sentinel Crab has a large carapace with a strongly granular surface. It burrows on open mudflats in very soft mud from northern Australia south to Moreton Bay.
Crustaceans
Brown Tiger Prawn, *Penaeus esculentus*. © Queensland Museum, Bruce Cowell. Brown Tiger Prawn
The Brown Tiger Prawn is a large, banded prawn growing to 235 mm in length. It occurs on mud or sandy mud, and is found in northern Australia from Shark Bay, WA, to central NSW.
Crustaceans
Red Reef Lobster, *Enoplometopus occidentalis*. © Queensland Museum, Gary Cranitch. Spiny Lobsters & Slipper Lobsters
Despite their name, the Australian spiny lobsters and slipper lobsters lack the large, powerful claws that are the hallmark of the marine 'clawed' lobsters from the northern hemisphere. The two most common families are the Palinuridae (spiny lobsters) and the Scyllaridae (slipper lobsters). Slipper lobsters such as the Moreton Bay Bug and the Smooth Fan Lobster are both commercially fished, as is the Ornate Spiny Lobster, although the latter is collected mostly by hand.
Crustaceans
Faxon’s Shrimp, *Solenocera faxoni*. © Queensland Museum, Neville Coleman. Prawns & Shrimps
Prawns and shrimps are an incredibly diverse group, with around 4000 species known from around the world, and about 900 in Australia. While they are primarily marine, they can be found in a variety of environments, ranging from intertidal pools to deep-sea hydrothermal vents; however they also are common in estuaries and fresh water.
Crustaceans
Pygmy Wisp, *Agriocnemis pygmaea*, male. © Chris Burwell. Pygmy Wisp
The Pygmy Wisp is a tiny damselfly that inhabits ponds, swamps and fringes of dams and lakes with plentiful aquatic vegetation. Mature males are dark brown or black with greenish markings and a reddish tip to the abdomen. Young females are mostly red and become black and green as they age.
Insects
Damselflies
Red-rumped Wisp, *Agriocnemis rubricauda*, female. © Chris Burwell. Red-rumped Wisp
The Red-rumped Wisp is a tiny damselfly that inhabits a variety of standing water habitats, including small, well-vegetated ponds, dams and swamps. It is very similar to the Pgymy Wisp but males have more of the tip of the abdomen reddish. However, only female Red-rumped Wisps are known from south-east Queensland.
Insects
Damselflies
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