The beaded lizard or Mexican beaded lizard (Heloderma horridum) is found in Mexico and the southern United States. Along with the Gila monster (Heloderma suspectum), they are known as the only venomous species of lizard in the world. [1]. Their venom is similar to that of some snakes (e.g., the western diamondback rattler). There are a number of subspecies, including H. h. exasperatum, H. h. alvarezi, and H. h. horridum. Adult Mexican beaded lizards range from 13 to 18 inches (33 to 46 cm) in length. Image File history File linksMetadata Download high-resolution version (2560x1696, 3270 KB)Mexican Beaded Lizard from the loca reptile house. ... The conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. ... Image File history File links Status_iucn2. ... A vulnerable species is one whose chances of extinction characterize it as threatened but not quite as endangered. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Subregnum Parazoa Porifera Subregnum Eumetazoa Placozoa Orthonectida Rhombozoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked) Acoelomorpha Myxozoa Superphylum Deuterostomia Chordata Hemichordata Echinodermata Chaetognatha Xenoturbellida Superphylum Ecdysozoa Kinorhyncha Loricifera Priapulida Nematoda Nematomorpha Onychophora Tardigrada Arthropoda Superphylum Platyzoa Platyhelminthes Gastrotricha Rotifera Acanthocephala Gnathostomulida Micrognathozoa Cycliophora Superphylum Lophotrochozoa Sipuncula Nemertea Phoronida Ectoprocta Bryozoa... {{{subdivision_ranks}}} See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ... Orders Procolophonia (extinct) Testudines Araeoscelidia (extinct) Avicephala (extinct) Younginiformes (extinct) Sauropterygia Ichthyosauria (extinct) Placodontia (extinct) Nothosauria (extinct) Plesiosauria (extinct) Sphenodontia Squamata Prolacertiformes (extinct) Archosauria Crurotarsi Order Aetosauria (extinct) Order Phytosauria(extinct) Order Rauisuchia (extinct) Order Crocodilia Ornithodira Pterosauria (extinct) Marasuchus (extinct) Dinosauria Order Saurischia Order Ornithischia(extinct) Reptiles are tetrapods... Suborders Lacertilia- Lizards Serpentes - Snakes Amphisbaenia - Worm lizards This article is about the Squamata order of reptiles. ... Classification Genus Heloderma Heloderma horridum: Mexican beaded lizard Heloderma suspectum: Gila monster Categories: Lizards | Helodermas ... Classification Genus Heloderma Heloderma horridum: Mexican beaded lizard Heloderma suspectum: Gila monster Categories: Lizards | Helodermas ... In biology, binomial nomenclature is the formal method of naming species. ... Arend Friedrich August Wiegmann (1802 - German zoologist. ... Binomial name Heloderma suspectum Cope, 1869 The Gila monster (Heloderma suspectum) is a species of lizard that was once thought to be one of only two species of venomous lizards. ... Binomial name Crotalus atrox Baird & Girard, 1853 Crotalus atrox is a highly venomous rattlesnake species found in the United States and Mexico. ... In zoology, as in other branches of biology, subspecies is the rank immediately subordinate to a species. ...
A pair of Mexican beaded lizards. The one on the right is in the process of shedding its skin.
Image File history File linksMetadata Download high-resolution version (3136x1548, 439 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Mexican beaded lizard Metadata This file contains additional information, probably added from the digital camera or scanner used... Image File history File linksMetadata Download high-resolution version (3136x1548, 439 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Mexican beaded lizard Metadata This file contains additional information, probably added from the digital camera or scanner used...
References
Beaman (1996). Heloderma horridum. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Listed as Vulnerable (VU A2cd v2.3)
Berkow, Robert, Ed. (1992). The Merck Manual, 16th Ed.. Merck Research Laboratories. ISBN 0-911910-16-6. The IUCN Red List of Threatened Species (also known as the IUCN Red List and Red Data List), created in 1963, is the worlds most comprehensive inventory of the global conservation status of plant and animal species. ... The World Conservation Union or International Union for Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to natural resource conservation. ...
The beadedlizard or Mexicanbeadedlizard (Heloderma horridum) is found in Mexico and the southern United States.
Along with the Gila monster (Heloderma suspectum), it was thought until recently to be one of only two lizards known to be venomous, until research showed that some iguanas and monitor lizards also produce venom [1].
Adult Mexicanbeadedlizards range from 13 to 18 inches (33 to 46 cm) in length.
Until very recently, it was thought that only two lizard species were venomous: the Mexicanbeadedlizard and the closely-related Gila monster, both of which live in northern Mexico and the southwest United States.
The chief impact of lizards on humans is positive; they are significant predators of pest species; numerous species are prominent in the pet trade; some are eaten as food (for example, iguanas in Central America); and lizard symbology plays important, though rarely predominant roles in some cultures (e.g.
Lizards in the Scincomorpha family, which include skinks (such as the blue-tailed skink), often have shiny, iridescent scales that appear moist.
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