| Iais singaporensis | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Isopoda |
| Family: | Janiridae |
| Genus: | Iais |
| Species: | I. singaporensis |
| Binomial name | |
| Iais singaporensis Menzies & Barnard, 1951 | |
Iais singaporensis is a species of marine isopod found in Singapore. [1] It is found living commensally on sphaeromatid isopods. [2]
The male holotype of Iais singaporensis is about 1.7 millimetres (0.067 in) in length and about 0.7 millimetres (0.028 in) in width. Its first antenna is about one fifth of the length of the body, with the second antenna being longer at slightly less than two thirds of the body. The pleotelson is noticeably rounded and wider than it is long. [2]
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.
Cymothoa exigua, or the tongue-eating louse, is a parasitic isopod of the family Cymothoidae. It enters a fish through the gills. The female attaches to the tongue, while the male attaches to the gill arches beneath and behind the female. Females are 8–29 mm (0.3–1.1 in) long and 4–14 mm (0.16–0.55 in) wide. Males are about 7.5–15 mm (0.3–0.6 in) long and 3–7 mm (0.12–0.28 in) wide. The parasite severs the blood vessels in the fish's tongue, causing the tongue to fall off. It then attaches itself to the remaining stub of tongue and the parasite itself effectively serves as the fish's new "tongue".
Cumacea is an order of small marine crustaceans of the superorder Peracarida, occasionally called hooded shrimp or comma shrimp. Their unique appearance and uniform body plan makes them easy to distinguish from other crustaceans. They live in soft-bottoms such as mud and sand, mostly in the marine environment. There are more than 1,500 species of cumaceans formally described. The species diversity of Cumacea increases with depth.
Arubolana imula is a species of crustacean in the family Cirolanidae, endemic to Aruba. It was described in 1979 by Lazare Botosaneanu and Jan Hendrik Stock.
Iais elongata is a species of brackish isopod, found on Inaccessible Island.
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.
Iais is a genus of isopod crustaceans. Iais species are found in association with larger isopods of the family Sphaeromatidae, usually on the ventral surface of the larger animal, between the pereiopods and on the pleopods. They are native to Australasia and South America, although Iais californica and its host Sphaeroma quoyanum have invaded California, and I. californica was first described from Sausalito, California.
Paracerceis sculpta is a species of marine isopod between 1.3 millimetres (0.05 in) and 10.3 mm (0.41 in) in length. The species lives mainly in the intertidal zone, and is native to the Northeast Pacific from Southern California to Mexico, but has since been introduced to many other countries. Adults are herbivorous and consume algae but juveniles are carnivorous and consume moulting females. They reproduce in sponges but do not feed near them.
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.
Urothoe marina is a species of small marine amphipod crustaceans in the family Urothoidae. It is found on and burrowing in coarse sediments in shallow coastal waters off northwestern Europe.
Nototropis falcatus is a species of amphipod crustacean. It is whitish in colour, with brown patches, and grows to a total length of around 7 mm (0.3 in). It lives on soft sediment such as fine sand at depths of 10 to 50 metres, from northern Norway to the west coast of Ireland, including the North Sea, and as far south as the southern Bay of Biscay.
Pseudarmadillo cristatus is an extinct species of isopod (woodlouse) in the family Delatorreiidae known from a series of possibly Miocene fossils found on Hispaniola. At the time of description P. cristatus was one of two Pseudarmadillo species known from the fossil record and one of only two from Hispaniola.
Aphaenogaster amphioceanica is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found in amber on Hispaniola. At the time of description A. amphioceanica was one of two Aphaenogaster species known from the Caribbean islands.
Pseudarmadillo tuberculatus is an extinct species of isopod in the family Delatorreiidae known from a series of possibly Miocene fossils found on Hispaniola. At the time of description P. tuberculatus was one of two Pseudarmadillo species known from the fossil record and one of only two from Hispaniola.
Protopone is an extinct genus of ants in the formicid subfamily Ponerinae described from fossils found in Europe and Asia. There are seven described species placed into the genus, Protopone? dubia, Protopone germanica, Protopone magna, Protopone oculata, Protopone primigena, Protopone sepulta, and Protopone vetula. Protopone is one several Lutetian Ponerinae genera.
Luckia is a genus of amphipod crustaceans in the family Pontogeneiidae, with the sole species Luckia striki. It is found in hydrothermal vents in the Atlantic Ocean.
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.
Neocalanus plumchrus is a large species of copepod found in the Pacific and Arctic Oceans. It was described in 1921 H. by Marukawa. N. flemingeri was formerly considered as conspecific, likely as a form, until it was split in 1988 by Charles B. Miller.
Pylaemenes konchurangensis is a species of stick insects native in Vietnam. The species has been described in the genus Pylaemenes, but from its morphological characters it belongs in the genus Orestes.
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