| Evadne | |
|---|---|
 | |
| Evadne spinifera | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Crustacea |
| Class: | Branchiopoda |
| Order: | Onychopoda |
| Family: | Podonidae |
| Genus: | Evadne Lovén, 1836 |
Evadne is a genus of onychopods in the family Podonidae. There are at least four described species in Evadne. [1]
Branchiopoda is a class of crustaceans. It comprises fairy shrimp, clam shrimp, Diplostraca, Notostraca and the Devonian Lepidocaris. They are mostly small, freshwater animals that feed on plankton and detritus.
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 end of the Devonian, around 360 million years ago. 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.
Anostraca is one of the four orders of crustaceans in the class Branchiopoda; its members are referred to as fairy shrimp. They live in vernal pools and hypersaline lakes across the world, and they have even been found in deserts, ice-covered mountain lakes and Antarctic ice. They are usually 6–25 mm (0.24–0.98 in) long. Most species have 20 body segments, bearing 11 pairs of leaf-like phyllopodia, and the body lacks a carapace. They swim "upside-down" and feed by filtering organic particles from the water or by scraping algae from surfaces, with the exception of Branchinecta gigas, or "giant fairy shrimp", which is itself a predator of other species of anostracans. They are an important food for many birds and fish, and some are cultured and harvested for use as fish food. There are 300 species spread across 8 families.
Acanthametropus is a genus of mayflies in the family Acanthametropodidae. There are at least two described species in Acanthametropus.
The Diplostraca or Cladocera, commonly known as water fleas, is a superorder of small, mostly freshwater crustaceans, most of which feed on microscopic chunks of organic matter, though some forms are predatory.
Baetis is a genus of mayflies of the family Baetidae, known as the blue-winged olive to anglers. There are at least 150 described species in Baetis. They are distributed worldwide, with the most variety in North America and northern Europe.
Branchinecta gaini is a species of fairy shrimp from Antarctica and Patagonia. It is the largest freshwater invertebrate in Antarctica, at 16 mm (0.63 in) long. It lives on bacteria and other organisms, surviving the winter as resting eggs.
Neoephemeridae is a family of large squaregill mayflies in the order Ephemeroptera. There are at least four genera and about 17 described species in Neoephemeridae.
Leptohyphodes is a genus of little stout crawler mayflies in the family Leptohyphidae. There is one described species in Leptohyphodes, L. inanis.
Ametropodidae is a family of mayflies in the order Ephemeroptera. There are at least three genera and three described species in Ametropodidae.
Euthyplociidae is a family of mayflies in the order Ephemeroptera. There are about 7 genera and more than 20 described species in Euthyplociidae.
Potamanthus sabahensis is a species of hacklegilled burrower mayfly in the family Potamanthidae.
Bosminidae is a family of anomopods in the order Diplostraca. There are at least 3 genera and 40 described species in Bosminidae.
Macrothricidae is a family of anomopods in the order Diplostraca. There are about 17 genera and at least 80 described species in Macrothricidae.
Cactus is a genus of anomopods in the family Macrothricidae. There is only one described species, Cactus cactus. C. cactus can be found in Chile.
Podonidae is a family of onychopods in the order Diplostraca. There are about 8 genera and at least 20 described species in Podonidae. A lot of them are non-native species, many of which pose a great threat to aquatic ecosystems.
Ameletus cryptostimulus is a species of combmouthed minnow mayfly in the family Ameletidae. It is found in southeastern Canada and the eastern United States.
Chane is a genus of small minnow mayflies in the family Baetidae. There is at least one described species in Chane, C. baure.
Iswaeon is a genus of small minnow mayflies in the family Baetidae. There are at least three described species in Iswaeon.
Penelomax is a genus of spiny crawler mayflies in the family Ephemerellidae. There is one described species in Penelomax, P. septentrionalis.
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