Algerian three-toed skink

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Algerian three-toed skink
Chalcides mertensi.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Scincidae
Genus: Chalcides
Species:
C. mertensi
Binomial name
Chalcides mertensi
Klausewitz, 1954
Chalcides mertensi distribution.png
Synonyms
  • Chalcides chalcides ssp. mertensiKlausewitz, 1954

The Algerian three-toed skink (Chalcides mertensi) is a species of "grass-swimming" skink with an elongated serpentine shape and reduced limbs. It is endemic to north-western Africa.

Contents

Distribution

It is native to northern Algeria and northern Tunisia, where it occurs on the Mediterranean coast. [1]

Habitat

The Algerian three-toed skink lives in forested areas in northern Algeria, and in semi-arid maquis-type habitats in Algeria and Tunisia. It prefers humid, sunny areas with dense vegetation within grassland, meadows, areas close to streams, hedges, open cork oak forest, and the edges of cultivated areas. It is also known from tall herbaceous grassland. The females give birth to formed young. [2] It has been recorded from sea level up to 1,500 m above sea level. [1]

Taxonomy

The Algerian three-toed skink was formerly considered to be as a subspecies of the Italian three-toed skink Chalcides chalcides , but it was raised to species status by Caputo (1993). [1] It has further been proposed that as molecular studies identified different lineages of the Algerian three-toed skink from samples in the northern and southern parts of its range in Tunisia and suggest there are at least two species present but recommended further research. [3] Another molecular study showed that this species was in a clade of Chalcides called the grass-swimming clade alongside Chalcides chalcides, Chalcides minutus and Chalcides mauritanicus , Chalcides guentheri , Chalcides pseudostriatus and Chalcides striatus , and it seems to be closest to eastern specimens of Chalcides minutus rather than Chalcides chalcides. [4]

Conservation

The Algerian three-toed skink is listed as least concern but is threatened by habitat loss caused by overgrazing and the conversion of land to agricultural and urbanisation. It occurs in the Djurdjura National Park in Algeria but is not known to occur in any protected areas in Tunisia. [1]

Related Research Articles

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<i>Chalcides chalcides</i> Species of reptile

The Italian three-toed skink or the cylindrical skink is a species of lizard found from Italy, to northern Algeria, Libya, Morocco and Tunisia. It is common in some locations and is usually found in sunny areas with dense vegetation but can also be found in arid areas. They reach about 48 cm in length, out of which the tail constitutes more than half. Its body is long and snake-like, coloured usually between brown and olive and may have dark stripes on the back. Each of the highly reduced legs has three fingers. These skinks are active during daytime and prey mainly on insects. Females of the species give birth to live young. The population of this skink is slowly declining, but it has some tolerance to habitat modification.

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<i>Chalcides mauritanicus</i> Species of lizard

Chalcides mauritanicus, or the two-fingered skink, is an African species of skink found in Algeria and Morocco. It occurs in sandy areas and plantations, but cannot exist in severely modified habitats. It also requires good ground cover, but as this is becoming increasingly scarce, the species is declining. The distribution of the species is severely fragmented. Females of the species give birth to live young.

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<span class="mw-page-title-main">Western three-toed skink</span> Species of reptile

The western three-toed skink is a species of lizard with tiny legs in the family Scincidae. It is found in the Iberian Peninsula, southern France and parts of northwestern Italy. Its natural habitats are temperate forests, temperate shrubland, Mediterranean-type shrubby vegetation, temperate grassland, sandy shores, arable land, pastureland, and rural gardens. It was first described 1829 by the French naturalist Georges Cuvier. The generic name comes from the Greek "chalcides" meaning 'copper' and the specific name is derived from the Latin "striatus" meaning 'streak'.

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<i>Eumeces algeriensis</i> Species of lizard

Eumeces algeriensis, commonly called the Algerian skink, Algerian orange-tailed skink, Berber's skink, in French eumece d'Algérie, or in Spanish bulán, is a species of skink in the family Scincidae. The species is endemic to the Maghreb region of North Africa.

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<i>Chalcides ocellatus</i> Species of lizard

Chalcides ocellatus, or the ocellated skink is a species of skink found in Greece, southern Italy, Malta, Lebanon, and parts of northern Africa. UAE, Israel, It is also found in Pakistan, India and Sri Lanka.

Cryptoblepharus mertensi, also known commonly as Merten's snake-eyed skink, is a species of lizard in the family Scincidae. The species is endemic to the Northern Territory in Australia.

Chalcides boulengeri, also known commonly as Boulenger's feylinia and Boulenger's wedge-snouted skink, is a species of lizard in the family Scincidae. The species is native to the Maghreb region of North Africa.

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References

  1. 1 2 3 4 5 Miras, J.A.M.; Joger, U.; Pleguezuelos, J.; Slimani, T.; El Mouden, H.; Geniez, P. (2006). "Chalcides mertensi". IUCN Red List of Threatened Species . 2006: e.T61480A12476313. doi: 10.2305/IUCN.UK.2006.RLTS.T61480A12476313.en . Retrieved 12 November 2021.
  2. "Chalcides mertensi" (PDF). uicnmed.org. Retrieved 2016-11-19.
  3. Massimo Giovannotti; Paola Nisi Cerioni; Andrea Splendiani; Mohsen Kalboussi; Paolo Ruggeri; Vincenzo Caputo Barucchi (2013). "Mitochondrial DNA reveals high genetic divergence between populations of Chalcides mertensi Klausewitz, 1954 (Reptilia: Scincidae) from Tunisia (abstract)". Amphibia-Reptilia. 34 (3): 389–399. doi:10.1163/15685381-00002901.
  4. S. Carranza; E.N. Arnold; Ph. Geniez; J. Roca; J.A. Mateo (2008). "Radiation, multiple dispersal and parallelism in the skinks, Chalcides and Sphenops with comments on Scincus and Scincopus and the age of the Sahara desert" (PDF). Molecular Phylogenetics and Evolution. 46: 1071–1094. doi:10.1016/j.ympev.2007.11.018. PMID   18276164.