Tuesday 21 May
Tenerife speckled lizard (Gallotia intermedia)
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Tenerife speckled lizard fact file
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Tenerife speckled lizard description
An extremely rare species, the Tenerife speckled lizard (Gallotia intermedia) was only discovered in 1996 (1). It belongs to the genus Gallotia, the members of which are found only on the Canary Islands (3).
The adult Tenerife speckled lizard is blackish-brown with a network of either distinctive yellow spots or pale grey lines on its back (2). Some individuals also have two rows of eye-like spots, one blue row and one yellow, running along the side of the body between the front and hind limbs. The tail of the Tenerife speckled lizard is a uniform grey-brown with some irregular black blotches. The underside of the body is greyish-yellow and the throat is grey. The Tenerife speckled lizard has an orange eye with a black pupil (2).
The female Tenerife speckled lizard differs from the male in being slightly smaller, and having a line of seven blue, eye-like spots along its back. The juvenile of this species is brownish-grey, with more distinct pale yellow spots (2).
- Lagarto Canario Moteado.
Tenerife speckled lizard biology
The Tenerife speckled lizard is generally believed to feed mainly on plant material (1). Other species in the Laceritidae family, or ‘true lizards’, are known to mainly forage for food on the ground, in low shrubs or at the base of trees (4) (5).
Although there is little available information on the reproductive biology of the Tenerife speckled lizard, it known to be an egg-laying species (1). In females of the Laceritidae family, the number of eggs laid is thought to be related to body size (5).Top
Tenerife speckled lizard rangeTop
Tenerife speckled lizard habitat
The preferred habitat of the Tenerife speckled lizard is rocky, rugged terrain, often with sparse vegetation cover. However, it is believed that this species may have occupied a greater variety of habitats in the past (1).Top
Tenerife speckled lizard status
The Tenerife speckled lizard is classified as Critically Endangered (CR) on the IUCN Red List (1).Top
Tenerife speckled lizard threats
The Tenerife speckled lizard has an extremely restricted range, with just 40 isolated populations occurring along a 9 kilometre stretch of the west coast of Tenerife, and one further population in the south. The population of this species is thought to total no more than 600 individuals, and is at risk from the effects of inbreeding (1).Top
Tenerife speckled lizard conservation
The most important conservation measure for the Tenerife speckled lizard is the control of feral cat populations. Measures so far have included the use of fencing to exclude feral cats from the known habitat of the Tenerife speckled lizard (1). Future control measures of feral cat populations need to take into account the potential for inadvertently casing rat numbers to increase through the removal of their main predator (6).
Although the Tenerife speckled lizard species is known to occur in at least one protected area, further surveys are urgently needed to locate isolated populations in inaccessible areas (1).Top
Find out more
Find out more on the conservation of the wildlife of the Mediterranean Basin:
IUCN - The Status and Distribution of Reptiles and Amphibians of the Mediterranean Basin:
This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
- A species or taxonomic group that is only found in one particular country or geographic area.
- Previously domesticated animals that have returned to a wild state.
- A category used in taxonomy, which is below ‘family’ and above ‘species’. A genus tends to contain species that have characteristics in common. The genus forms the first part of a ‘binomial’ Latin species name; the second part is the specific name.
IUCN Red List (October, 2011)
- Hernández, E., Nogales, M. and Martín, A. (2000) Discovery of a new lizard in the Canary Islands, with a multivariate analysis of Gallotia (Reptilia: Lacertidae). Herpetologica, 56(1): 63-76.
- Martin, J.E. and Roca, V. (2004) Helminth infracommunities of a population of the Gran Canaria giant lizard Gallotia stehlini. Journal of Helminthology, 78: 319-322.
- Halliday, T. and Adler, K. (2002) The New Encyclopedia of Reptiles and Amphibians. Oxford University Press, Oxford.
- Zug, G.R., Vitt, L.J. and Caldwell, J.P. (2001) Herpetology: An Introductory Biology of Amphibians and Reptiles. Academic Press, San Diego and London.
- Medina, F. and Nogales, M. (2009) A review on the impacts of feral cats (Felis silvestris catus) in the Canary Islands: implications for the conservation of its endangered fauna. Biodiversity Conservation, 18: 829-846.
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