List of tardigrades of South Africa

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The list of tardigrades of South Africa is a list of species that form a part of the phylum Tardigrada of the fauna of South Africa. The list follows the SANBI listing.

Tardigrades (/ˈtɑːrdɪɡreɪd/), known colloquially as water bears or moss piglets, are a phylum of eight-legged segmented micro-animals. They were first described by the German zoologist Johann August Ephraim Goeze in 1773, who called them Kleiner Wasserbär ("little water bear"). In 1777, the Italian biologist Lazzaro Spallanzani named them Tardigrada /tɑːrˈdɪɡrədə/, which means "slow steppers".

They have been found everywhere in Earth's biosphere, from mountaintops to the deep sea and mud volcanoes, and from tropical rainforests to the Antarctic. Tardigrades are among the most resilient animals known, with individual species able to survive extreme conditions — such as exposure to extreme temperatures, extreme pressures (both high and low), air deprivation, radiation, dehydration, and starvation — that would quickly kill most other known forms of life. Tardigrades have survived exposure to outer space. There are about 1,300 known species in the phylum Tardigrada, a part of the superphylum Ecdysozoa consisting of animals that grow by ecdysis such as arthropods and nematodes. The earliest known true members of the group are known from Cretaceous (145 to 66 million years ago) amber, found in North America, but are essentially modern forms, and therefore likely have a significantly earlier origin, as they diverged from their closest relatives in the Cambrian, over 500 million years ago.

Tardigrades are usually about 0.5 mm (0.020 in) long when fully grown. They are short and plump, with four pairs of legs, each ending in claws (usually four to eight) or suction disks. Tardigrades are prevalent in mosses and lichens and feed on plant cells, algae, and small invertebrates. When collected, they may be viewed under a low-power microscope, making them accessible to students and amateur scientists. (Full article...)

Where common names are given, they are not necessarily the only common names in use for the species.

Class Heterotardigrada[]

Order Echiniscoidea[]

Family Echiniscidae[]

Genus Echiniscus:[1]

  • Murray, 1907
  • Ehrenberg, 1853
  • Murray, 1907
  • Richters, 1902
  • Murray, 1907
  • Murray, 1907
  • Marcus, 1928

Genus Pseudechiniscus:[1]

  • (Murray, 1907)
  • Bartos, 1963
  • Ehrenberg, 1853), syn. Echiniscus mutabilis Murray, 1905, Pseudechiniscus suillus suillus (Ehrenberg, 1853)

Class Eutardigrada[]

Order Parachela[]

Family Hypsibiidae[]

Genus Doryphoribius:[1]

  • (Iharos, 1966), syn. Doryphoribius citrinus, (Maucci, 1972), Hypsibius citrinus Maucci, 1973

Genus Hypsibius:[1]

  • (Urbanowicz, 1925), syn. Macrobiotus convergens Urbanowicz, 1925
  • Hypsibius dujardini (Doyère, 1840), syn. Hypsibius lacustris (Doyère, 1851), Macrobiotus dujardin Doyère, 1840, Macrobiotus dujardini Doyère, 1840, Macrobiotus samoanus Richters, 1908
  • (Iharos, 1969)

Genus Isohypsibius:[1]

  • Pilato, 1971
  • (Murray, 1907), syn. Hypsibius nodosus (Murray, 1907), Macrobiotus nodosus Murray, 1907
  • (Richters, 1902), syn. Hypsibius bakonyiensis Iharos, 1964, Hypsibius sattleri (Richters, 1902), Isohypsibius bakonyiensis (Iharos, 1964), Macrobiotus sattleri Richters, 1902

Genus Ramazzottius:[1]

  • (Dastych, 1980), syn. Hypsibius szeptycki Dastych, 1980, Ramazzottius szepticki (Dastych, 1980)
  • Dastych, 1983

Genus Diphascon:[1]

  • Murray, 1905, syn. Adropion scoticum Murray, 1905, Hypsibius scoticus (Murray, 1905)
  • Kaczmarek & Michalczyk, 2004

Genus Paradiphascon:[1]

  • Paradiphascon manningi Dastych, 1992

Genus Astatumen:[1]

  • (Arcidiacono, 1962), syn. Astatumen ramazzottii (Iharos, 1966), Itaquascon ramazzottii Iharos, 1966, Itaquascon trinacriae Arcidiacono, 1962

Family Calohypsibiidae[]

Genus Haplomacrobiotus:[1]

  • Pilato & Beasley, 1987

Family Macrobiotidae[]

Genus Calcarobiotus:[1]

  • Dastych, 1993
  • Dastych, 1993

Genus Macrobiotus:[1]

  • Dastych, 1993
  • Richters, 1904
  • Murray, 1906, syn. Macrobiotus furciger Murray, 1907
  • C.A.S. Schultze, 1834, syn. Macrobiotus eminens Ehrenberg, 1895, C.A.S. Schultze, 1834, Della Valle, 1914
  • Pilato & Sperlinga, 1975
  • Murray, 1911
  • Pilato, Binda & Catanzaro, 1991
  • (Murray, 1907)

Genus Minibiotus:[1]

  • (Murray, 1910), syn. Macrobiotus hufelandioides Murray, 1910
  • (Plate, 1888), syn. Macrobiotus intermedius Plate, 1889, Macrobiotus intermedius intermedius]] Plate, 1889

Order Apochela[]

Family Milnesiidae[]

Genus Milnesium:[1]

  • Milnesium tardigradum Doyère, 1840, syn. Arcrophanes schlagintweitii Ehrenberg, 1859, Arctiscon tardigradum Schrank, 1803

References[]

  1. ^ a b c d e f g h i j k l m n "Checklist of South African Tardigrada. Animal checklist website". biodiversityadvisor.sanbi.org. South African National Biodiversity Institute. 2010. Retrieved 19 January 2021.
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