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Lepidurus
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Apus
''Lepidurus apus'', commonly known as a tadpole shrimp, is a notostracan in the family Triopsidae, one of a lineage of shrimp-like crustaceans that have had a similar form since the Triassic period and are considered living fossils. This species is cosmopolitan, inhabiting temporary freshwater ponds over much of the world, and the most widespread of the tadpole shrimps. Like other notostracans, ''L. apus'' has a broad carapace, long segmented abdomen, and large numbers of paddle-like legs. It reproduces by a mixture of sexual reproduction and self-fertilisation of females. Description ''Lepidurus apus'' grows to in length. Its long abdomen is divided into about 30 segment-like rings, with two long caudal rami or "tails" attached behind the last ring. Between the tails is a projection which distinguishes ''Lepidurus'' from ''Triops'', the other notostracan genus. Its carapace is flat with an average length of , and is attached only at the front, covering up to two thirds of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Packardi
''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of habitat, and other freshwater aquatic habitats including ponds, reservoirs, ditches, road ruts, and other natural and artificial temporary water bodies. The animal is found in several regions of California, including the Central Coast, Sacramento Valley, San Joaquin Valley, and southern Sierra Nevada foothills. The southeastern Sacramento Valley contains about 15% of the remaining vernal pool grassland habitat in the state, and it has about 35% of the known occurrences of ''L. packardi''. 28% of all occurrences are in Sacramento County, California. Other areas with occurrences include the Don Edwards San Francisco Bay National Wildlife Refuge, several preserves in Tehama County, and the vicinity of the cities of Chico, Redding, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Couesii
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Mongolicus
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Lemmoni
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Batesoni
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Bilobatus
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Cryptus
''Lepidurus'' is a genus of small crustaceans in the order Notostraca (tadpole shrimp). It is the larger of the two extant genera of the tadpole shrimps, the other being ''Triops''. They are commonly found in vernal pools and survive dry periods with the help of long lasting resting eggs. The genus contains the following species: *''Lepidurus apus'' (Linnaeus, 1758) *''Lepidurus arcticus'' (Pallas, 1793) *''Lepidurus batesoni'' Longhurst, 1955 *''Lepidurus bilobatus'' Packard, 1883 *''Lepidurus couesii'' Packard, 1875 *''Lepidurus cryptus'' D. C. Rogers, 2001 *''Lepidurus lemmoni'' Holmes, 1894 *''Lepidurus mongolicus'' Vekhoff, 1992 *''Lepidurus packardi ''Lepidurus packardi'', known by the common name vernal pool tadpole shrimp, is a rare species of tadpole shrimp (Notostraca). Distribution The freshwater crustacean is endemic to California, where it lives in the endangered vernal pool type of ...'' Simon, 1886 References External links * Notostraca Branchiopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lepidurus Arcticus
Arctic tadpole shrimp ''Lepidurus arcticus'' is a species of tadpole shrimp which inhabits ephemeral pools, ponds or permanent freshwater lakes of Finland, Norway, Sweden, Svalbard, Greenland, Iceland, Russia and the Kuril Islands.Schlager, Neil, et al. Grzimek's Animal Life Encyclopedia. Gale. 2004 . Unlike other species of tadpole shrimp, ''Lepidurus arcticus'' is known to coexist with fish, such as Arctic char, brown trout and European whitefish. Furthermore, they exist in water temperatures much colder () than the other species of its order. About 14°C seems to be the upper thermal threshold for where in which waters it can live. It is a common predator of ''Daphnia pulex ''Daphnia pulex'' is the most common species of water flea. It has a cosmopolitan distribution: the species is found throughout the Americas, Europe, and Australia. It is a model species, and was the first crustacean to have its genome sequenced. ...''. References Notostraca Freshwater crustaceans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notostraca
The order Notostraca, containing the single family Triopsidae, is a group of crustaceans known as tadpole shrimp or shield shrimp. The two genera, ''Triops'' and '' Lepidurus'', are considered living fossils, with similar forms having existed since the Devonian. They have a broad, flat carapace, which conceals the head and bears a single pair of compound eyes. The abdomen is long, appears to be segmented and bears numerous pairs of flattened legs. The telson is flanked by a pair of long, thin caudal rami. Phenotypic plasticity within taxa makes species-level identification difficult, and is further compounded by variation in the mode of reproduction. Notostracans are omnivores living on the bottom of temporary pools and shallow lakes. Description Notostracans are long, with a broad carapace at the front end, and a long, slender abdomen. This gives them a similar overall shape to a tadpole, from which the common name ''tadpole shrimp'' derives. The carapace is dorso-ventrally flat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Branchiopoda Genera
Branchiopoda is a class of crustaceans. It comprises fairy shrimp, clam shrimp, Diplostraca (or Cladocera), Notostraca and the Devonian ''Lepidocaris''. They are mostly small, freshwater animals that feed on plankton and detritus. Description Members of the Branchiopoda are unified by the presence of gills on many of the animals' appendages, including some of the mouthparts. This is also responsible for the name of the group (from the grc, βράγχια, gills, akin to , windpipe; el, πούς, foot). They generally possess compound eyes and a carapace, which may be a shell of two valves enclosing the trunk (as in most Cladocera), broad and shallow (as in the Notostraca), or entirely absent (as in the Anostraca). In the groups where the carapace prevents the use of the trunk limbs for swimming (Cladocera, clam shrimp and the extinct Lipostraca), the antennae are used for locomotion, as they are in the nauplius. Male fairy shrimp have an enlarged pair of antennae with which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
