Hemisquillidae

	Hemisquillidae ''Hemisquilla'' is a genus of mantis shrimp, and the only genus in the family Hemisquillidae. It contains four species distributed in Australia and the Americas. Species in the genus typically eat snails, fish, rock oysters, and smaller crustaceans like crabs. They are preyed upon by larger bony fishes and cephalopods. Species Four species are recognized: Anatomy Prey capture in ''Hemisquilla'' species is extremely rapid. Contact with the prey is made within 4-10 milliseconds, and the striking limb moves at a linear velocity of around 10 meters per second. There are five physiologically different motor units composed of muscle fibers that work together to make this rapid strike possible. References {{Taxonbar, from=Q4511248 Stomatopoda Wikipedia Student Program Malacostraca genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Mantis Shrimp Mantis shrimp, or stomatopods, are carnivorous marine crustaceans of the order Stomatopoda (). Stomatopods branched off from other members of the class Malacostraca around 340 million years ago. Mantis shrimp typically grow to around in length, while a few can reach up to . A mantis shrimp's carapace (the hard, thick shell that covers crustaceans and some other species) covers only the rear part of the head and the first four segments of the thorax. Varieties range in colour from shades of brown to vivid colours, with more than 450 species of mantis shrimp known. They are among the most important predators in many shallow, tropical and subtropical marine habitats. However, despite being common, they are poorly understood, as many species spend most of their lives sheltering in burrows and holes. Called "sea locusts" by ancient Assyrians, "prawn killers" in Australia, and now sometimes referred to as "thumb splitters"—because of the animal's ability to inflict painful woun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Stomatopoda Mantis shrimp, or stomatopods, are carnivorous marine crustaceans of the order Stomatopoda (). Stomatopods branched off from other members of the class Malacostraca around 340 million years ago. Mantis shrimp typically grow to around in length, while a few can reach up to . A mantis shrimp's carapace (the hard, thick shell that covers crustaceans and some other species) covers only the rear part of the head and the first four segments of the thorax. Varieties range in colour from shades of brown to vivid colours, with more than 450 species of mantis shrimp known. They are among the most important predators in many shallow, tropical and subtropical marine habitats. However, despite being common, they are poorly understood, as many species spend most of their lives sheltering in burrows and holes. Called "sea locusts" by ancient Assyrians, "prawn killers" in Australia, and now sometimes referred to as "thumb splitters"—because of the animal's ability to inflict painful wound ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Hemisquilla Australiensis ''Hemisquilla australiensis'' is a species of mantis shrimp native to Australia and also found in New Zealand. References Stomatopoda Crustaceans of Australia {{Malacostraca-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Hemisquilla Braziliensis ''Hemisquilla australiensis'' is a species of mantis shrimp Mantis shrimp, or stomatopods, are carnivorous marine crustaceans of the order Stomatopoda (). Stomatopods branched off from other members of the class Malacostraca around 340 million years ago. Mantis shrimp typically grow to around in lengt ... native to South America. Conservation ''H. braziliensis'' is currently facing pressure in the South Atlantic due to bycatch and exploitation. Off the coast of the Brazilian states of Sao Paulo and Rio de Janeiro, commercial pink shrimp trawling is common and often leads to the bycatch and discarding of numerous species of crustaceans, including ''H. braziliensis''. Due to its large size, the species is also directly targeted for commercial exploitation in this region. References Stomatopoda Crustaceans of South America {{Malacostraca-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Hemisquilla Californiensis ''Hemisquilla californiensis'' is a species of mantis shrimp Mantis shrimp, or stomatopods, are carnivorous marine crustaceans of the order Stomatopoda (). Stomatopods branched off from other members of the class Malacostraca around 340 million years ago. Mantis shrimp typically grow to around in lengt ... native to the northern Pacific. Behaviour Low-frequency sounds ("rumbles") emitted by ''H. californiensis'' are spectrally similar to the sounds produced by African and Asian elephants, in a range of 20–60 Hz with a strong secondary harmonic frequency. The species appears to produce this rumble by contracting a posterior muscle connected to a stiff extension of the carapace. The sides of the carapace are covered in large red polarized spots which vibrate during the rumble, suggesting that the sound may generate both vibrational and visual signals. It may be used to interact with predators and burrow intruders as a defensive or territorial measure. It has been su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Hemisquilla Ensigera ''Hemisquilla ensigera'' is a species of mantis shrimp Mantis shrimp, or stomatopods, are carnivorous marine crustaceans of the order Stomatopoda (). Stomatopods branched off from other members of the class Malacostraca around 340 million years ago. Mantis shrimp typically grow to around in lengt .... Two formerly recognized subspecies are now considered to be separate species ('' H. californiensis'', '' H. australiensis''). Ecology The species is a near complete "oxyconformer" in that its aerobic metabolism is significantly depressed and impacted at low oxygen levels. References Stomatopoda {{Malacostraca-stub Crustaceans described in 1832 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Wikipedia Student Program Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read reference work in history. It is consistently one of the 10 most popular websites ranked by Similarweb and formerly Alexa; Wikipedia was ranked the 5th most popular site in the world. It is hosted by the Wikimedia Foundation, an American non-profit organization funded mainly through donations. Wikipedia was launched by Jimmy Wales and Larry Sanger on January 15, 2001. Sanger coined its name as a blend of ''wiki'' and ''encyclopedia''. Wales was influenced by the "spontaneous order" ideas associated with Friedrich Hayek and the Austrian School of economics after being exposed to these ideas by the libertarian economist Mark Thornton. Initially available only in English, versions in other languages were quickly developed. Its combined editions com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]