Isopoda is an order of crustaceans. Members of this group are called Isopods and include both terrestrial and aquatic species such as woodlice. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and five pairs of branching appendages on the abdomen that are used in respiration. Females brood their young in a pouch under their thorax.
Sphaeromatidae is a family of isopods, often encountered on rocky shores and in shelf waters in temperate zones. The family includes almost 100 genera and 619 known marine species. Within these genera, there are groups that share distinctive morphologies; further research may reclassify these genus-groups as separate families.
Amphoroidea falcifer is an isopod of the family Sphaeromatidae, endemic to New Zealand. It grows up to 14 millimetres (0.55 in), and is found on algae such as Durvillea.
Iais californica is an isopod species in the Janiridae family. The species has a commensal relationship with another isopod, Sphaeroma quoyanum.
Iais pubescens is a species of marine isopod in the family Janiridae. It inhabits seashores in a large number of locations in the southern hemisphere and may be found both free-living, and as commensals on larger isopods.
Sphaeroma terebrans is a mangrove-boring isopod that was first documented in the United States as early as 1897. It is 8–10 millimetres (0.31–0.39 in) long, and is thought to have been introduced by wooden-hulled ships. The isopod is found throughout the Gulf of Mexico mainly in mangrove swamps of Louisiana and Florida. S. terebrans will also bore into boats, wooden pilings and other wooden structures.
Dynoides elegans is a species of isopod crustacean in the genus Dynoides. It was originally described in 1923 by Pearl Lee Boone as "Cianella elegans" based on specimens from La Jolla and San Pedro, California. It was transferred to the genus Dynoides in 2000, when Boone's genus was sunk into synonymy with Dynoides.
Sphaeroma is a genus of aquatic isopod crustaceans, part of the family Sphaeromatidae.
Exosphaeroma pentcheffi is a species of marine isopod of the family Sphaeromatidae.
Exosphaeroma amplicauda is a species of marine isopod of the family Sphaeromatidae.
Sphaeroma papillae is a species of isopod in the family Sphaeromatidae known from and potentially endemic to southern New England. It was described from Cold Spring Harbor on Long Island in 1938 and has since then been found in other locations on the north shores of Long Island and Cape Cod. It can be told from the similar Sphaeroma quadridentatum by the presence of two tubercles on the telson and the unserrated outer margin of the outer uropod branch. This species tends to be found in places of the intertidal zone where there is a direct influence with fresh water, such as seeps and pond outlets.
Elthusa californica is a species of isopod in the family Cymothoidae of the order Isopoda. E.californica is a saltwater parasitic isopod. Like many species of the Elthusa genus, E. californica was first placed in within the Liveneca genus, but later underwent taxonomic revisions.
Sphaeroma quadridentatum, the sea pill bug, is a species of isopod in the family Sphaeromatidae.
Lekanesphaera is a genus of Isopod in the family Sphaeromatidae. It was split off from Sphaeroma by Karl Wilhelm Verhoeff, 1943.: The type species is L. monodi. Other well-studied species are L. glabella (Madera), L. rugicauda (Baltic), and L. hookeri. Because they inhabit intertidal zones such as estuaries, their adaptation to diurnal variations in factors such as salinity are often studied.
Dynoides indicus is a species of isopod in the family Sphaeromatidae. It can be found in the water near Sri Lanka.
Dynoides serratisinus is a species of isopod in the family Sphaeromatidae. It is found in the Indian Ocean.
Scutuloidea kutu is a species of marine isopods in the family Sphaeromatidae, first described by Stephenson and Riley in 1996. No subspecies are listed in the Catalog of Life. The name "kutu" was chosen as a metaphor, as the species lives on seaweed.
Scutuloidea maculata is a species of marine isopods in the family Sphaeromatidae, first described by Charles Chilton in 1883. No subspecies are listed in the Catalogue of Life.
Scutuloidea is a genus of isopods. All species in this genus are endemic to New Zealand.
