Armadillo Lizard
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The armadillo girdled lizard (''Ouroborus cataphractus''), www.reptile-database.org. also commonly known as the armadillo lizard, the armadillo spiny-tailed lizard, and the golden-armadillo lizard, is a species of lizard in the family Cordylidae. The species is endemic to
desert A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About on ...
areas along the western coast of South Africa. In 2011, it was moved to its own genus based on molecular phylogeny, but formerly it was included in the genus '' Cordylus''.


Description

The armadillo girdled lizard can be a light brown to dark brown in coloration. The underbelly is yellow with a blackish pattern, especially under the chin. Its size can range from in
snout A snout is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw. In many animals, the structure is called a muzzle, rostrum, or proboscis. The wet furless surface around the nostrils of the nose of many mammals is c ...
- vent length (SVL). It may grow to a maximum size of SVL."''Cordylus cataphractus'' "
Arkive


Distribution and habitat

''O. cataphractus'' is endemic to the
Succulent Karoo The Succulent Karoo is a ecoregion defined by the World Wide Fund for Nature to include regions of desert in South Africa and Namibia, and a biodiversity hotspot. The geographic area chosen by the WWF for what they call 'Succulent Karoo' does no ...
biome in the Northern and the Western Cape provinces of South Africa, where it occurs from the southern
Richtersveld The Richtersveld is a desert landscape characterised by rugged kloofs and high mountains, situated in the north-western corner of South Africa’s Northern Cape province. It is full of changing scenery from flat, sandy, coastal plains, to crag ...
to the
Piketberg Mountains Piketberg (also sometimes spelt Piquetberg in the past) is a town in the Western Cape, South Africa, located about 80 km east of Saldanha Bay. The original spelling of the name was "Piquetberg". The town is in the foothills of the Piketberg mounta ...
and the southern
Tankwa Karoo Tankwa Karoo National Park is a national park in South Africa. The park lies about 70 km due west of Sutherland near the border of the Northern Cape and Western Cape, in one of the most arid regions of South Africa, with areas receiving ...
. It inhabits rock outcrops and mountain slopes, preferably on sandstone substrate.


Ecology


Diet

The armadillo girdled lizard feeds mainly on small invertebrates, such as insects and spiders, but sometimes also may take plant material. In captivity, it is commonly fed crickets. In the wild, its most common prey items are termites, especially ''
Microhodotermes ''Microhodotermes'' is a genus of southern African harvester termites in the Hodotermitidae. As with harvester termites in general, they have serrated inner edges to their mandibles, and all castes have functional compound eyes. Species of this g ...
viator'' and ''
Hodotermes ''Hodotermes'' (from Greek ὁδός (hodós), travelling; Latin '' termes'', woodworm) is a genus of African harvester termites in the Hodotermitidae. They range from Palaearctic North Africa, through the East African savannas to the karroid ...
mossambicus''. Individuals in larger social groups tend to eat more termites than those in smaller groups


Behavior

The armadillo girdled lizard is diurnal. It hides in rock cracks and crevices. It lives in social groups of up to 30 to 60 individuals of all ages, but usually fewer. Males are
territorial A territory is an area of land, sea, or space, particularly belonging or connected to a country, person, or animal. In international politics, a territory is usually either the total area from which a state may extract power resources or a ...
, protecting a territory and mating with the females living there. The armadillo girdled lizard possesses an uncommon antipredator adaptation, in which it rolls into a ball and takes its tail in its mouth when frightened. In this shape, it is protected from
predators Predation is a biological interaction where one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill the ...
by the thick, squarish scales along its back and the spines on its tail. This behavior, which resembles that of the mythical ouroboros and of the mammalian
armadillo Armadillos (meaning "little armored ones" in Spanish) are New World placental mammals in the order Cingulata. The Chlamyphoridae and Dasypodidae are the only surviving families in the order, which is part of the superorder Xenarthra, along wi ...
, gives it its taxonomic and English common names.


Reproduction

The female armadillo girdled lizard gives birth to one or two"''Cordylus cataphracus'' "
Animal Diversity Web
/ref> live young; the species is one of the few lizards that does not lay eggs. The female may even feed her young, which is also unusual for a lizard. Females give birth once a year at most; some take a year off between births. One hundred and six individuals from 27 groups were marked and recaptured regularly from May until September 2002. The group that was greater in fidelity had a greater neighboring distance. While the group that was less in fidelity had a less neighboring distance. The neighboring distance correlates to the fidelity of the armadillo girdled lizard species.Flemming, A. F.; Costandius, E.; Mouton, P.L.N. (2006). "The effect of intergroup distance on group fidelity in the group-living Lizard, ''Cordylus cataphractus''. ''African Journal of Herpetology'' 55 (1): 61-68. 0.1080/21564574.2006.96355/ref>


Conservation

The species ''Ouroborus cataphractus'' is classified by the
IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...
as near threatened. This is mostly due to a general cessation of collection for the pet trade, which was a significant drain on populations but is now illegal. The armadillo girdled lizard is thought to be somewhat susceptible to fluctuations in its primary foodsource (termites), which in turn can be impacted by climatic events such as changes in rainfall patterns, as well as to habitat changes through invasive alien plant species and poor fire management.


References


Further reading

* Boie F (1828). "''Über eine noch nichte beschriebene Art von'' Cordylus ''Gronov.'' Cordylus cataphractus ''Boie'' ". ''Nova Acta Academiae Caesareae Leopoldino-Carolinae (Halle)'' 14 (1): 139-142. (''Cordylus cataphractus'', new species). (in German). * Boulenger GA (1885). ''Catalogue of the Lizards in the British Museum (Natural History). Second Edition. Volume III. Iguanidæ, Xenosauridæ, Zonuridæ ...'' London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 497 pp. + Plates I-XXIV. (''Zonurus cataphractus'', pp. 255–256). * Branch, Bill (2004). ''Field Guide to Snakes and other Reptiles of Southern Africa''. Third Revised edition, Second impression. Sanibel Island, Florida: Ralph Curtis Books. 399 pp. . (''Cordylus cataphractus'', pp. 186–187 + Plate 68).


External links


''"Early German Herpetological Observations"'' - Bauer (2003)
{{Taxonbar, from=Q777490 Cordylidae Endemic reptiles of South Africa Rolling animals Fauna of South Africa Endemic fauna of South Africa Reptiles described in 1828 Taxa named by Friedrich Boie