Crayfish, crawfish, or crawdads — members of the superfamilies Astacoidea and Parastacoidea — are freshwater crustaceans resembling small lobsters, to which they are related. They breathe through feather-like gills and are found in bodies of water that do not freeze to the bottom; they are also mostly found in brooks and streams where there is fresh water running, and which have shelter against predators.
Hermit crabs are decapod crustaceans of the superfamily Paguroidea. They are not closely related to true crabs. Hermit crabs are quite commonly seen in the intertidal zone: for example, in tide pools. Most species have long, soft abdomens which are protected from predators by a salvaged empty seashell carried on the crab's back, into which the crab's whole body can retract.
Sea-Monkeys is the brand name for artemia sold in hatching kits, as a novelty aquarium pet aimed at children, in the United States and the United Kingdom since 1960. They are a variant of brine shrimp or Artemia salina, a species which enters cryptobiosis, a natural state of suspended animation, allowing their cysts (dormant saclike embryos) to be sold as a dry powder.
"Uca" redirects here. For other use, see UCA. A fiddler crab, sometimes known as a calling crab, may be any of approximately 94 species of semi-terrestrial marine crabs which make up the genus Uca . Belonging to the family Ocypodidae, fiddler crabs are most closely related to the ghost crabs of the genus Ocypode. This crustacean is named for the fiddle-shaped large claw of the male crab. This entire group is composed of small crabs — the largest being slightly over two inches across.
The Caribbean hermit crab (Coenobita clypeatus), also known as the West Atlantic crab, the tree crab, the soldier crab, and the purple pincher (due to the distinctive purple claw), is a species of land hermit crab native to the west Atlantic, Bahamas, Belize, southern Florida, Venezuela, the Virgin Islands, and the West Indies. This species is one of the two land hermit crabs commonly sold in the United States as a pet, the other being the Ecuadorian hermit crab.
The Ecuadorian hermit crab (Coenobita compressus) also known as the Pacific hermit crab is a species of land hermit crab. It is one of the two land hermit crabs commonly sold in the United States as a pet, the other being the Caribbean hermit crab (Coenobita clypeatus).
The Australian land hermit crab (Coenobita variabilis) is one of two terrestrial hermit crab species native to Australia and is found in northern parts of Australia including northern Western Australia, Northern Territory and northern Queensland. The other terrestrial species is the strawberry land hermit crab (C. perlatus) which is reportedly restricted to the islands and coral cays of the Great Barrier Reef, north-eastern Australia.
Members of the order Notostraca (colloquially referred to as notostracans, tadpole shrimp, shield shrimp or by the genus name Triops) are small crustaceans in the class Branchiopoda. Triops have two internal compound eyes and one naupliar eye in between, a flattened carapace covering its head and leg-bearing segments of the body. The order contains a single family, with only two extant genera.
The genus Coenobita contains about thirteen species of terrestrial hermit crabs. They are able to live on land because of their modified gills, although they still require a warm, humid environment. They can live several miles from water in moist forests and jungles. Land hermit crabs live in colonies of 100 and more, feeding on plant and animal matter. They are omnivorous scavengers which eat plant and animal matter, including fallen fruit, rotting wood, decaying animals and fish.
The Australian red claw crayfish, also called Queensland red claw or just redclaw, Cherax quadricarinatus, is an Australian freshwater crayfish. It is found in permanent freshwater streams, billabongs and lakes on the north coast of the Northern Territory and northeastern Queensland. Populations are also found in Papua New Guinea. Through translocation by humans, the range has spread down to southern Queensland and into the far north of West Australia.
Pagurus bernhardus is the common marine hermit crab of Europe's Atlantic coasts. It is sometimes referred to as the common hermit crab or soldier crab. It is about 3½ cm long, and is found in both rocky and sandy areas, from the Arctic waters of Iceland, Svalbard and Russia as far south as southern Portugal, but its range does not extend as far as the Mediterranean Sea.
Coenobita cavipes is a species of land hermit crab native to the eastern parts of Africa, the Philippines, China, Japan, Malaysia, Taiwan, Polynesia, and Micronesia. They are found in the inland area of forests and only go to the beach for mating. As with other land hermit crabs they are omnivorous scavengers but C. cavipes mainly eat fruit. The first set of antennae are colored black and the second set red. They also have black hair, white bumps, and a stripe across the large pincer.
Coenobita brevimanus is a species of land hermit crab native to the east coast of Africa and the south west Pacific Ocean. Adults of this species can be larger than any other species from the genus Coenobita and only Birgus latro is larger in the family Coenobitidae.
Geosesarma is genus of terrestrial crabs. They live and reproduce on land with its larval stage inside the egg. Some species such as Geosesarma nemesis are insectivorous and are beneficial to humans. Some species are kept as pets. They were once considered part of the Grapsidae family but were moved out with the other Sesarmidae. Most species of this genus are brightly colored.
Cambarellus patzcuarensis is a crayfish in the family Cambaridae with a body measuring 4–5 centimeters, including claws. The species is named after Lake Pátzcuaro, and is endemic to Mexico. Most specimen found in the wild are brown, sometimes with a gray or blue tint. Cambarellus patzcuarensis var. "Orange" (Mexican dwarf crayfish, sometimes Mexican dwarf orange crayfish) is an orange-coloured mutation often held in aquariums, but this form is rarely found in the wild.