Loxocemus
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Scientific classification 
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| Template:Taxon infoTemplate:Taxon italics Cope, 1861
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Loxocemus bicolor,[4] the sole member of the monotypic family Loxocemidae[5] and commonly known as the Mexican python,[5] Mexican burrowing python[6] and Mexican burrowing snake, is a species of python-like snake found in Mexico and Central America. No subspecies are currently recognized.[7] Analyses of DNA show that Loxocemus is most closely related to the true pythons and the sunbeam snakes.[8][9]
Description
Adults grow to a maximum of 1.57 m (62 in) in length.[10] On average this snake grows to roughly 91 cm (2.99 ft). The body is stout and very muscular. The snout is shovel-shaped, with a narrow head and small eyes to facilitate burrowing. It has been observed that both male and females have various scent glands on their bodies that secrete fatty acids and alcohols to deter nuisance arthropods, such as ants or other burrowing insects.[11] The species is described as terrestrial and semi-fossorial,[10] which makes them hard to observe and study. The color pattern is usually dark with patches of white scales, although occasionally after shedding all pigment will disappear, resulting in a white snake with only a small dark patch on its head. Scale coloring can also vary between pinkish-brown and reddish-brown, a source of camouflage depending on the soil type of the region an individual typically inhabits.
Distribution and habitat
It is found along the Mexican Pacific versant at low to moderate elevations in the states of Nayarit, Jalisco, Colima, Michoacán, Morelos, Guerrero, Oaxaca, and Chiapas. From there, its range extends south through Guatemala, Honduras, El Salvador, Nicaragua, and Costa Rica. The type locality given is "La Unión, San Salvador" (in El Salvador).[1]
Life cycle
They are found in a variety of habitats, including tropical, moist, and dry forests. In Honduras and Guatemala, they also occur in dry inland valleys that drain into the Caribbean.[1] Their diet is believed to consist of rodents and lizards. In addition, they prey on arthropods, such as underground insects and centipedes, as well as worms. They have also been observed eating iguana eggs, in addition to having been observed to eat sea turtle eggs and hatchlings when food is scarce.[12] They are oviparous, laying small clutches of two to four eggs.[10] In order to consume eggs, individuals have been observed to wrap two to three loops of its anterior trunk to pressurize and pierce an egg before swallowing the yolk whole.[12]
References
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- ^ a b c d e McDiarmid RW, Campbell JA, Touré T. 1999. Snake Species of the World: A Taxonomic and Geographic Reference, vol. 1. Herpetologists' League. 511 pp. Template:ISBN (series). Template:ISBN (volume).
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- ^ Species Loxocemus bicolor at The Reptile Database. Accessed 17 August 2007.
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- ^ a b c Loxocemidae at the Reptarium.cz Reptile Database. Accessed 3 November 2008.
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Further reading
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External links
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- Loxocemus bicolor at the Reptarium.cz Reptile Database. Accessed 19 August 2007.
- Family loxocemidae
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