Four-toed jerboa

Species of mammal

Four-toed jerboa
Conservation status

Data Deficient  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Dipodidae
Genus: Scarturus
Gloger, 1841
Species:
S. tetradactylus
Binomial name
Scarturus tetradactylus
(Lichtenstein, 1823)
Geographic range

The four-toed jerboa (Scarturus tetradactylus) is a rodent of the family Dipodidae and genus Scarturus that has four digits. Four-toed jerboas are native to Egypt and Libya. They live in coastal salt marshes and dry deserts.

Physical appearance

Similar to the other jerboas in the genera Allactaga and Scarturus, the four-toed jerboa are small hopping rodents with large ears and a long tail, with a black band near the white, feathery tip. The tail assists and serves as support when the jerboa is standing upright.[2] They have long hind feet and short forelegs.[3] The pelt of the four-toed jerboa is velvety in texture and the upper-parts are speckled black and orange, the rump orange, and the sides gray. The four-toed jerboa hind-limbs have one digit less than other jerboas in the subfamily Allactaginae, but one more hind digit than other jerboas. The extra digit is smaller in size and nonfunctional compared to the other three digits.[4]

Nutrition

Emerging at night, the four-toed jerboa eats grass, leaves, and soft seeds.[5] The low crown molars and soft palates help the four-toed jerboa chew plant material and seeds.[6]

The four-toed jerboa is a host of the acanthocephalan intestinal parasite Moniliformis aegyptiacus.[7]

Conservation status

The four-toed jerboa was listed as on the IUCN Red List of Threatened Species. They are at very high risk of extinction due to habitat loss and restricted range.

References

  1. ^ Gerrie, R.; Kennerley, R. (2017). "Allactaga tetradactyla". IUCN Red List of Threatened Species. 2017: e.T850A22201540. doi:10.2305/IUCN.UK.2017-2.RLTS.T850A22201540.en. Retrieved 18 November 2021.
  2. ^ Kirmiz, John P. Adaptation to Desert Environment; A Study on the Jerboa, Rat and Man. London: Butterworths, 1962. 17. Print.
  3. ^ Lagassé, Paul. "Jerboa." The Columbia Encyclopedia. 6th ed. New York: Columbia UP, 2000. Academic Search Premier. Web. 1 Oct. 2013.
  4. ^ Shahin, A (2005). "Growth and Maturation of Metatarsals and Their Taxonomic Significance in the Jerboas Allactaga and Jaculus (Rodentia: Dipodidae)". Acta Zoologica. 86 (2): 82. doi:10.1111/j.1463-6395.2005.00189.x.
  5. ^ Holden, M. E. and G. G. Musser. 2005. Family Dipodidae. pp. 871–893 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore
  6. ^ Basyouny Shahin, Adel (1999). "A Comparative Study of the Molar and Soft Palate Characters of the Genera Allactaga and Jaculus (Mammalia: Rodentia) in Egypt". Zoology in the Middle East. 18 (1): 17–32. doi:10.1080/09397140.1999.10637779.
  7. ^ Guerreiro Martins, Natalia Beatriz; Del Rosario Robles, María; Navone, Graciela Teresa (2017). "A new species of Moniliformis from a Sigmodontinae rodent in Patagonia (Argentina)". Parasitology Research. 116 (8): 2091–2099. doi:10.1007/s00436-017-5508-9. PMID 28585077. Retrieved February 9, 2020.
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Extant species of family Dipodidae
Sicistinae
Sicista
(Birch mice)
  • Armenian birch mouse (Sicista armenica)
  • Northern birch mouse (Sicista betulina)
  • Caucasian birch mouse (Sicista caucasica)
  • long-tailed birch mouse (Sicista caudata)
  • Chinese birch mouse (Sicista concolor)
  • Kazbeg birch mouse (Sicista kazbegica)
  • Kluchor birch mouse (Sicista kluchorica)
  • Nordmann's birch mouse (Sicista loriger)
  • Altai birch mouse (Sicista napaea)
  • gray birch mouse (Sicista pseudonapaea)
  • Severtzov's birch mouse (Sicista severtzovi)
  • Strand's birch mouse (Sicista strandi)
  • Southern birch mouse (Sicista subtilis)
  • Tien Shan birch mouse (Sicista tianshanica)
  • Hungarian birch mouse (Sicista trizona)
Zapodinae
(Jumping mice)
Eozapus
  • Chinese jumping mouse (Eozapus setchuanus)
Napaeozapus
  • Woodland jumping mouse (Napaeozapus insignis)
Zapus
  • Meadow jumping mouse (Zapus hudsonius)
  • Western jumping mouse (Zapus princeps)
  • Pacific jumping mouse (Zapus trinotatus)
Allactaginae
(Jerboas)
Allactaga
Subgenus Allactaga
Iranian jerboa (Allactaga firouzi)
Hotson's jerboa (Allactaga hotsoni)
great jerboa (Allactaga major)
Svertzov's jerboa (Allactaga severtzovi)
Subgenus Orientallactaga
Balikun jerboa (Allactaga balikunica)
Gobi jerboa (Allactaga bullata)
Mongolian five-toed jerboa (Allactaga sibirica)
Allactodipus
  • Bobrinski's jerboa (Allactodipus bobrinskii)
Pygeretmus
  • lesser fat-tailed jerboa (Pygeretmus platyurus)
  • dwarf fat-tailed jerboa (Pygeretmus pumilio)
  • greater fat-tailed jerboa (Pygeretmus shitkovi)
Scarturus
  • small five-toed jerboa (Scarturus elater)
  • Euphrates jerboa (Scarturus euphratica)
  • four-toed jerboa (Scarturus tetradactyla)
  • Vinogradov's jerboa (Scarturus vinogradovi)
  • Williams's jerboa (Scarturus williamsi)
Cardiocraniinae
(Jerboas)
Cardiocranius
  • five-toed pygmy jerboa (Cardiocranius paradoxus)
Salpingotulus
  • Baluchistan pygmy jerboa (Salpingotulus michaelis)
Salpingotus
Subgenus Anguistodontus
thick-tailed pygmy jerboa (Salpingotus crassicauda)
Subgenus Prosalpingotus
Heptner's pygmy jerboa (Salpingotus heptneri)
pale pygmy jerboa (Salpingotus pallidus)
Thomas's pygmy jerboa (Salpingotus thomasi)
Subgenus Salpingotus
Kozlov's pygmy jerboa (Salpingotus kozlovi)
Dipodinae
(Jerboas)
Dipus
  • northern three-toed jerboa (Dipus sagitta)
Eremodipus
  • Lichtenstein's jerboa (Eremodipus lichtensteini)
Jaculus
  • Blanford's jerboa (Jaculus blanfordi)
  • lesser Egyptian jerboa (Jaculus jaculus)
  • greater Egyptian jerboa (Jaculus orientalis)
Stylodipus
  • Andrews's three-toed jerboa (Stylodipus andrewsi)
  • Mongolian three-toed jerboa (Stylodipus sungorus)
  • thick-tailed three-toed jerboa (Stylodipus telum)
Paradipus
  • comb-toed jerboa (Paradipus ctenodactylus)
Euchoreutinae
(Jerboas)
Euchoreutes
  • long-eared jerboa (Euchoreutes naso)
Category
Taxon identifiers
Allactaga tetradactyla


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