Ligia cinerascens

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Ligia cinerascens
Ligia cinerascens 2.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Superorder: Peracarida
Order: Isopoda
Suborder: Oniscidea
Family: Ligiidae
Genus: Ligia
Species:
L. cinerascens
Binomial name
Ligia cinerascens
Budde-Lund, 1885
L cinerascens range map.jpg
Distribution of L. cinerascens based on available literature

Ligia cinerascens is a woodlouse in the family Ligiidae. [1]

Contents

Description

L. cinerascens is very similar to L. occidentalis with more antenna segments, but shorter overall antennal length. [2] It can be distinguished from L. exotica by its shorter antennae and uropods, as well as its uniformly gray color and granular texture. [3] The species name cinerascens comes from the Latin for "ashy," referring to the gray color of this species.

Life cycle

In the wild, L. cinerascens usually lives about a year (overwintering once), but occasionally lives up to 2.5 years (overwintering twice). Females breed in their first year for five months, then die before the second winter, typically producing one brood or two at the most. Reared in the lab, L. cinerascens has a longer lifespan and may produce three or more broods in a lifetime. [4]

L. cinerascens is parasitized by Thinoseius setifer , a mite attaching to the woodlouse's pleopods. [5]

Distribution

G. H. A. Budde-Lund found samples of L. cinerascens on a long ocean exploration, and when he returned, he could not remember if they had come from Japan, Manila, or Chile, limiting current knowledge of the full range of the species. [3] It has also been found on Kuril Islands (specifically Kunashir Island) and Peter the Great Gulf in far western Russia. [6] It is one of four Ligia species to be found on Japanese coasts. Specifically, it is found mainly on Hokkaido, with a separate population in Tokyo Bay. [4]

Related Research Articles

Isopoda Order of arthropods

Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. 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.

Armadillidiidae Family of woodlice, a terrestrial crustacean group in the order Isopoda

Armadillidiidae is a family of woodlice, a terrestrial crustacean group in the order Isopoda. Unlike members of other woodlice families, members of this family can roll into a ball, an ability they share with the outwardly similar but unrelated pill millipedes and other animals. This ability gives woodlice in this family their common names of pill bugs or roly polies. Other common names include slaters,potato bugs, doodle bugs and cheeselogs. Most species are native to the Mediterranean Basin, while a few species have wider European distributions. The best-known species, Armadillidium vulgare, was introduced to New England in the early 19th century and has become widespread throughout North America.

Woodlouse Crustacean from the monophyletic suborder Oniscidea

A woodlouse is an isopod crustacean from the monophyletic suborder Oniscidea within the order Isopoda. They get their name from often being found in old wood.

Gustav Budde-Lund Danish zoologist

Gustav Henrik Andreas Budde-Lund was a Danish invertebrate zoologist. In 1868, he co-founded the Entomologisk Forening, alongside Rasmus William Traugott Schlick, Carl August Møller, Andreas Haas and Ivar Frederik Christian Ammitzbøll. He was a student of entomologist J. C. Schiødte, and became a leading authority on terrestrial isopods, describing over 70 genera and around 500 species. He married in 1875 and in 1885 produced his seminal work Crustacea Isopoda terrestria. The woodlouse genus Buddelundiella was named in Budde-Lund's honour by Filippo Silvestri in 1897.

<i>Hemilepistus reaumuri</i> Species of woodlouse

Hemilepistus reaumuri is a species of woodlouse that lives in and around the deserts of North Africa and the Middle East, "the driest habitat conquered by any species of crustacean". It reaches a length of 22 mm (0.87 in) and a width of up to 12 mm (0.47 in), and has seven pairs of legs which hold its body unusually high off the ground. The species was described in the Description de l'Égypte after the French Campaign in Egypt and Syria of 1798–1801, but was first formally named by Henri Milne-Edwards in 1840 as Porcellio reaumuri. It reached its current scientific name in 1930 after the former subgenus Hemilepistus was raised to the rank of genus.

<i>Ligia</i> Genus of woodlice

Ligia is a genus of isopods, commonly known as rock lice or sea slaters. Most Ligia species live in tidal zone cliffs and rocky beaches, but there are several fully terrestrial species occur in high-humidity environments.

<i>Ligia exotica</i> Species of woodlouse

Ligia exotica, also called sea roach or wharf roach, is a woodlouse-like isopod, a sea slater in the family Ligiidae. It is found in various parts of the world living on rocky coasts and harbour walls just above high water mark.

<i>Ligia australiensis</i> Species of woodlouse

Ligia australiensis, the Australian marine slater, is a woodlouse in the family Ligiidae.

<i>Ligia baudiniana</i> Species of woodlouse

Ligia baudiniana is a woodlouse in the family Ligiidae. It has a coarsely granular surface and large eyes that are very close together.

Ligia natalensis is a woodlouse-like isopod in the family Ligiidae.

<i>Ligia dilatata</i> Species of woodlouse

Ligia dilatata is a woodlouse in the family Ligiidae.

Ligia cajennensis is a woodlouse in the family Ligiidae. It has a relatively narrow body with a rough, grainy texture. It's a dark yellow/rust color, with lighter antennae and legs. Its eyes are brownish black.

Ligia cursor is a woodlouse in the family Ligiidae.

<i>Porcellio montanus</i> Species of woodlouse

Porcellio montanus is a species of woodlouse in the genus Porcellio belonging to the family Porcellionidae that can be found in Czech Republic, France, Italy and Switzerland. Only one subspecies have been recorded, Porcellio montanus alpivagusVerhoeff, 1928.

Porcellio albinus is a species of woodlouse in the genus Porcellio belonging to the family Porcellionidae that can be found in North Africa.

Porcellio obsoletus is a species of woodlouse in the genus Porcellio belonging to the family Porcellionidae that can be found on islands like Crete, Cyclades, Cyprus, Dodecanese, Malta, North Aegean, and Sicily. It can also be found in such European countries as Albania, Croatia, Greece, Italy, Ukraine, and European part of Turkey.

Armadillidae Family of woodlice

Armadillidae is a family of woodlice, comprising around 80 genera and 700 species. It is the largest family of Oniscidea, and one of the most species-rich families of the entire Isopoda. Armadillids generally have a strongly convex body shape, with some rather shallowly convex. Like members of the woodlice family Armadillidiidae, armadillids are capable of enrolling into a sphere (conglobation), and are commonly known as pill bugs. Armadillids differ from the Armadillidiidae in that the antennae are fully enclosed within the sphere.

Scleropactidae is a family of woodlice, with a predominantly Gondwanan distribution. It contains the following genera:

<i>Deto echinata</i> Species of woodlouse

Deto echinata, the horned isopod, is a species of air-breathing isopod, or woodlouse, in the family Detonidae. It inhabits seashores in southern Africa and on some oceanic islands.

<i>Trichorhina tomentosa</i> Species of crustacean

Trichorhina tomentosa, known informally as the dwarf white isopod, is a species of woodlouse in the family Platyarthridae. It is a parthenogenetic species, and only female individuals are known. Native to tropical regions throughout the Americas, dwarf white isopods have been introduced to other tropical regions worldwide.

References

  1. Marilyn Schotte (2010). Schotte M, Boyko CB, Bruce NL, Poore GC, Taiti S, Wilson GD (eds.). "Ligia cinerascens Budde-Lund, 1885". World Marine, Freshwater and Terrestrial Isopod Crustaceans database. World Register of Marine Species . Retrieved July 25, 2012.
  2. Harold Gordon Jackson (1833). "A revision of the isopod genus Ligia (Fabricius)". Proceedings of the Zoological Society of London . 1922 (3): 683–703. doi:10.1111/j.1096-3642.1922.tb02164.x.
  3. 1 2 Harriet Richardson (1910). "Isopods collected in the northwest Pacific by the U. S. Bureau of Fisheries steamer "Albatross" in 1906". Proceedings of the United States National Museum . 37 (1701): 75–129. doi:10.5479/si.00963801.37-1701.75.
  4. 1 2 Toshio Furota; Takeshi Ito (1999). "Life Cycle and Environmentally Induced Semelparity in the Shore Isopod Ligia cinerascens (Ligiidae) on a Cobble Shore along Tokyo Bay, Central Japan". Journal of Crustacean Biology. 19 (4): 752–761. doi:10.2307/1549299.
  5. Takaku, Gen (2000). "Two new mite species of the genus Thinoseius (Acari: Gamasida: Eviphididae) from Japan". Species diversity. 5: 361–374.
  6. Lev Aleksandrovich Zenkevich (1963). Biology of the seas of the U.S.S.R. Interscience Publishers. Translated by S. Botcharskaya. p. 768.