Isopoda

isopodisopodsisopod crustaceansow bug (''Malacostraca isopoda'')woodlice
Isopoda is an order of crustaceans that includes woodlice and their relatives.wikipedia
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Microcerberidae

Isopods vary in size, ranging from some Microcerberidae species of just 0.3 mm to the deep sea Bathynomus spp. of nearly 50 cm.
The Microcerberidae are a family of isopod crustaceans.

Crustacean

Crustaceacrustaceanscarcinology
Isopoda is an order of crustaceans that includes woodlice and their relatives.
This occurs in many branchiopods, some ostracods, some isopods, and certain "higher" crustaceans, such as the Marmorkrebs crayfish.

Asellota

Ischnomesidae
In the deep sea, members of the suborder Asellota predominate, to the near exclusion of all other isopods, having undergone a large adaptive radiation in that environment. Other primitive, short-tailed suborders include Asellota, Microcerberidea, Calabozoidea and the terrestrial Oniscidea.
Asellota is a suborder of isopod crustaceans found in marine and freshwater environments.

Arthropod leg

legstarsicoxa
The first five abdominal segments each bear a pair of biramous (branching in two) pleopods (lamellar structures which serve the function of gas exchange, and in aquatic species serve as gills and propulsion), and the last segment bears a pair of biramous uropods (posterior limbs).
The exopodites can sometimes be missing in some crustacean groups (amphipods and isopods), and they are completely absent in insects.

Giant isopod

Bathynomus
Isopods vary in size, ranging from some Microcerberidae species of just 0.3 mm to the deep sea Bathynomus spp. of nearly 50 cm. Isopods lack an obvious carapace (shell), which is reduced to a "cephalic shield" covering only the head.
A giant isopod is any of the almost 20 species of large isopods (crustaceans distantly related to shrimp and crabs, which are decapods) in the genus Bathynomus.

Cirolanidae

cirolanidcirolanid isopods
Some members of the family Cirolanidae suck the blood of fish, and others, in the family Aegidae, consume the blood, fins, tail and flesh and can kill the fish in the process.
The Cirolanidae are a family of isopod crustaceans, including these genera:

Cymothoida

Cymothoida is the name of a suborder of isopod crustaceans with a mostly carnivorous or parasitic lifestyle.

Aegidae

Some members of the family Cirolanidae suck the blood of fish, and others, in the family Aegidae, consume the blood, fins, tail and flesh and can kill the fish in the process.

Woodlouse

woodliceOniscideasowbug
Isopoda is an order of crustaceans that includes woodlice and their relatives. Other primitive, short-tailed suborders include Asellota, Microcerberidea, Calabozoidea and the terrestrial Oniscidea.
A woodlouse (plural woodlice) is a crustacean from the monophyletic suborder Oniscidea within the isopods.

Brood pouch (Peracarida)

brood pouchmarsupiumbrood chamber
In mature females, some or all of the limbs have appendages known as oostegites which fold underneath the thorax and form a brood chamber for the eggs.
The marsupium or brood pouch, is a characteristic feature of Peracarida, including the orders Amphipoda, Isopoda, Cladocera, and Cumacea.

Epicaridea

CryptoniscoideaBopyroidea
Epicaridea is a former suborder of isopods, now treated as part of the suborder Cymothoida.

Gnathiidae

gnathiidgnathiddsGnathiidea
The larvae of the Gnathiidae family and adult cymothoidids have piercing and sucking mouthparts and clawed limbs adapted for clinging onto their hosts.
The Gnathiidae are a family of isopod crustaceans.

Carapace

cephalic shieldcarapacesshell
Isopods lack an obvious carapace (shell), which is reduced to a "cephalic shield" covering only the head.
These include Cladocera, ostracods, and isopods, but isopods only have a developed "cephalic shield" carapace covering the head.

Phreatoicidea

phreatoicidean crustaceans
They were primitive, short-tailed members of the suborder Phreatoicidea.
Phreatoicidea is a suborder of isopod crustaceans.

Microcerberidea

Other primitive, short-tailed suborders include Asellota, Microcerberidea, Calabozoidea and the terrestrial Oniscidea.
The Microcerberidea are a suborder of isopod crustaceans.

Flabellifera

Some members of the Flabellifera can swim to a limited extent and have their front three pairs of pleopods modified for this purpose, with their respiratory structures limited to the hind pleopods.
Flabellifera is a former suborder of isopod crustaceans.

Sphaeromatidea

The semi-terrestrial sea slaters (Ligia spp.) can run rapidly on land and many terrestrial species can roll themselves into a ball when threatened, a feature that has evolved independently in different groups and also in the marine sphaeromatids.

Phoratopus

PhoratopideaPhoratopus remex
Phoratopus remex is a species of isopod crustaceans known from only two specimens, and first described in 1925 by Herbert Matthew Hale (1895–1963).

Ligia

sea slaters
The semi-terrestrial sea slaters (Ligia spp.) can run rapidly on land and many terrestrial species can roll themselves into a ball when threatened, a feature that has evolved independently in different groups and also in the marine sphaeromatids.
Ligia is a genus of isopods, commonly known as rock lice or sea slaters.

Telson

pleotelsonpretelsonsting
One or more of the abdominal segments, starting with the sixth segment, is fused to the telson (terminal section) to form a rigid pleotelson.
In the Isopoda and Tanaidacea (superorder Peracarida), the last abdominal body segment is fused with the telson, forming a "pleotelson".

Calabozoidae

CalabozoideaCalabozoida
Other primitive, short-tailed suborders include Asellota, Microcerberidea, Calabozoidea and the terrestrial Oniscidea.
The Calabozoidae are a family of isopod crustaceans, placed in its own suborder, Calabozoida or Calabozoidea.

Peracarida

peracaridperacarids
Isopods belong to the larger group Peracarida, which are united by the presence of a special chamber under the thorax for brooding eggs.

Limnoria lignorum

Limnoria terebrans
Limnoria lignorum, for example, bores into wood and additionally feeds on the mycelia of fungi attacking the timber, thus increasing the nitrogen in its diet.
Limnoria lignorum, commonly known as the gribble, is a species of isopod in the family Limnoriidae.

Cymothoidae

cymothoidcymothoidids
The larvae of the Gnathiidae family and adult cymothoidids have piercing and sucking mouthparts and clawed limbs adapted for clinging onto their hosts.
The Cymothoidae are a family of isopods in the suborder Cymothoida and are found in both marine and freshwater environments.