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Heloderma charlesbogerti
The Guatemalan beaded lizard (''Heloderma charlesbogerti''), also called the Motagua Valley beaded lizard, is a highly endangered species of beaded lizard, a venomous lizard endemic to the dry forests of the Motagua Valley in southeastern Guatemala,〔Ariano-Sánchez, D. & G. Salazar. (2007). "Notes on the distribution of the endangered lizard, Heloderma horridum charlesbogerti, in the dry forests of eastern Guatemala: an application of multi-criteria evaluation to conservation"'. ''Iguana'' 14: 152-158.〕 an ecoregion known as the Motagua Valley thornscrub.〔(【引用サイトリンク】url=http://worldwildlife.org/ecoregions/nt1312 )〕 It is the only allopatric species, separated from the nearest population of beaded lizards (''H. alvarezi'') by 250 km of unsuitable habitat. The Guatemalan beaded lizard is the rarest and most endangered species of beaded lizard and it is believed that fewer than 200 of these animals exist in the wild, making it one of the most endangered lizards in the world. In 2007, it was transferred from Appendix II to Appendix I of CITES due to its critical conservation status.〔Convention on International Trade in Endangered Species of Wild Fauna and Flora. 2007. Resume of the 14th Convention of the Parts. The Hague. The Netherlands.〕
==Taxonomy==
The Guatemalan beaded lizard belongs to the family Helodermatidae which forms part of a clade of reptiles with toxin secreting glands.〔Ariano-Sánchez, D. (2008). "Envenomation by a wild Guatemalan beaded lizard Heloderma horridum charlesbogerti"'. ''Clinical toxicology''. 46 (9): 897-899.〕 Apart from being the only allopatric population of ''Heloderma horridum'' this species differs from other species in coloration and size, being the smallest one. Home ranges and behavior of these lizards were investigated using radio-telemetry at the dry forests of Zacapa, Guatemala.〔Ariano-Sánchez, D. (2006). "The Guatemalan beaded lizard: endangered inhabitant of a unique ecosystem". ''Iguana'' 13: 178-183.〕 The average home range for individuals was found to be 130 ha.〔
This species was first discovered in 1984 by an agricultural laborer named D. Vasquez in Guatemala's Motagua Valley.〔〔 Its generic name ''Heloderma'' means "studded skin", from the Ancient Greek words ''hêlos'' (ηλος)—the head of a nail or stud—and ''derma'' (δερμα), meaning skin. Its specific name is after US herpetologist Charles Mitchill Bogert.〔〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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