New Mexico's Venomous Snakes
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Nelsons Milk Snake
Nelsons Milk SNake PHYSICAL DESCRIPTION: • This species of milk snake typically keeps to southern and central Mexico, but have been • The red rings on a Nelson’s milk snake found on some tropical/costal islands as well. range from around 13 to 18, and has a predominantly black snout (except for DIET: when albino). • These snakes will consume various types • The red bands on the nelson’s milk snake are of rodents, amphibians, lizards and even the thickest stripes on their bodies, with black other snakes. being slightly thinner, and white being the thinnest. • Due to their cannibalistic nature nelson’s milk snakes must be housed separately SIZE AND LIFESPAN: when not breeding. • Adult nelson’s milk snakes are a small REPRODUCTION: to medium size snake, averaging around 42 inch (106cm). • Mating in the wild takes place in late spring and early summer. • The lifespan of these snakes is around 12-15 years, but has been known to live to 20 years • The female will select a nest site that is warm of age in captivity! and humid, and will then lays her clutch which contains up to 15 eggs. NATIVE HABITAT: • This species is often found in costal bushes and tropical forests, which provided them with many hiding spots that can protect them. • They are typically found in Mexico, ranging from southern Guanajuato and central Jalisco, all the way to the Pacific Coast. FUN FACTS: • The Nelson’s milk snake is a subspecies of king snakes. • They are nonvenomous, but are typically very shy and take a while to get use to being handled. -
WHO Guidance on Management of Snakebites
GUIDELINES FOR THE MANAGEMENT OF SNAKEBITES 2nd Edition GUIDELINES FOR THE MANAGEMENT OF SNAKEBITES 2nd Edition 1. 2. 3. 4. ISBN 978-92-9022- © World Health Organization 2016 2nd Edition All rights reserved. Requests for publications, or for permission to reproduce or translate WHO publications, whether for sale or for noncommercial distribution, can be obtained from Publishing and Sales, World Health Organization, Regional Office for South-East Asia, Indraprastha Estate, Mahatma Gandhi Marg, New Delhi-110 002, India (fax: +91-11-23370197; e-mail: publications@ searo.who.int). The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. The mention of specific companies or of certain manufacturers’ products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a similar nature that are not mentioned. Errors and omissions excepted, the names of proprietary products are distinguished by initial capital letters. All reasonable precautions have been taken by the World Health Organization to verify the information contained in this publication. However, the published material is being distributed without warranty of any kind, either expressed or implied. The responsibility for the interpretation and use of the material lies with the reader. In no event shall the World Health Organization be liable for damages arising from its use. -
Micrurus Lemniscatus (Large Coral Snake)
UWI The Online Guide to the Animals of Trinidad and Tobago Behaviour Micrurus lemniscatus (Large Coral Snake) Family: Elapidae (Cobras and Coral Snakes) Order: Squamata (Lizards and Snakes) Class: Reptilia (Reptiles) Fig. 1. Large coral snake, Micrurus leminiscatus. [http://www.flickr.com/photos/lvulgaris/6856842857/, downloaded 4 December 2012] TRAITS. The large snake coral has a triad-type pattern, i.e. the black coloration is in clusters of three. The centre band of the triad is wider than the outer ones and is separated by wide white or yellow rings (Schmidt 1957). The red band is undisturbed and bold and separates the black triads. The snout is black with a white crossband (Fig. 1). The triad number may vary from 9-13 on the body and the tail may have 1-2. The physical shape and the structure of the body of the large coral snake show a resemblance to the colubrids. It is the dentition and the formation of the maxillary bone that distinguishes the two, including the hollow fangs. The largest Micrurus lemniscatus ever recorded was 106.7 cm; adults usually measure from 40-50 cm (Schmidt 1957). The neck is not highly distinguishable from the rest of the body as there is modest narrowing of that area behind the neck giving the snake an almost cylindrical, elongated look. Dangerously venomous. UWI The Online Guide to the Animals of Trinidad and Tobago Behaviour ECOLOGY. The large coral snake is mostly found in South America, east of the Andes, southern Columbia, Ecuador, Peru, and Bolivia, the Guianas and Brazil, it is uncommon in Trinidad. -
First Record of Micrurus Lemniscatus Carvalhoi Roze, 1967 (Serpentes: Elapidae) from Espírito Santo State, Southeastern Brazil
Herpetology Notes, volume 10: 391-393 (2017) (published online on 06 July 2017) First Record of Micrurus lemniscatus carvalhoi Roze, 1967 (Serpentes: Elapidae) from Espírito Santo State, Southeastern Brazil Thiago Marcial de Castro1,*, Jane C. F. de Oliveira2, Rodrigo Castellari Gonzalez3, Felipe Franco Curcio4 and Darlan Tavares Feitosa5 Micrurus lemniscatus (Linnaeus, 1758) is a triad- In Brazil, Micrurus lemniscatus is the most widely patterned coral snake species widespread in most distributed triad coral snake (Silva Jr. et al., 2016). Brazilian biomes (to the exception of Pantanal wetlands; Micrurus l. carvalhoi ranges predominantly throughout see Silva Jr. et al., 2016), and also known from western central-eastern Brazil, with records from the states of Argentina and eastern Paraguay. The nominal species Alagoas, Bahia, Goiás, Mato Grosso do Sul, Minas contains three subspecies (M. l. lemniscatus, M. l Gerais, Paraíba, Paraná, Pernambuco, Rio Grande do carvalhoi, and M. l. helleri; see Pires et al., 2014 and Norte, Rio de Janeiro, Rio Grande do Sul, Santa Catarina, Silva Jr. et al., 2016) defined on the basis of colouration São Paulo, Sergipe, and Tocantins (Campbell and features and triads counts. Micrurus l. carvalhoi can be Lamar, 1989; Giraudo and Scrochii, 2002; Pires, 2011; distinguished from M. l. lemniscatus by the presence of irregular black spots on the red rings, black spots on the tips of dorsals of the white rings, which may occasionally form incomplete transversal bands, as well as a lower number of subcaudals (Roze, 1967; Pires et al., 2014). Micrurus l.carvalhoi differs from M. l. helleri by the number of dorsal and ventral scales (see Table 1 for comparative meristics data). -
MAINTENANCE of RED-TAIL CORAL SNAKE (Micrurus Mipartitus)
ACTA BIOLÓGICA COLOMBIANA http://www.revistas.unal.edu.co/index.php/actabiol SEDE BOGOTÁ FACULTAD DE CIENCIAS ARTÍCULODEPARTAMENTO DE DE INVESTIGACIÓN/RESEARCH BIOLOGÍA ARTICLE MAINTENANCE OF RED-TAIL CORAL SNAKE (Micrurus mipartitus) IN CAPTIVITY AND EVALUATION OF INDIVIDUAL VENOM VARIABILITY Mantenimiento en cautiverio de la coral rabo de ají (Micrurus mipartitus) y evaluación en la variabilidad individual de su veneno Ana María HENAO DUQUE1; Vitelbina NÚÑEZ RANGEL1,2. 1 Programa de Ofidismo/Escorpionismo, Facultad de Ciencias Farmacéuticas y Alimentarias. Universidad de Antioquia UdeA. Carrera 50A nº. 63-65. Medellín, Colombia. 2 Escuela de Microbiología. Universidad de Antioquia UdeA; Calle 70 nº. 52-21, Medellín, Colombia. For correspondence. [email protected] Received: 8th July 2015, Returned for revision: 30th November 2015, Accepted:17th January 2016. Associate Editor: Martha Lucia Ramírez. Citation/Citar este artículo como: Henao Duque AM, Núñez Rangel V. Maintenance of red-tail coral snake (Micrurus mipartitus) in captivity and evaluation of individual venom variability. Acta biol. Colomb. 2016;21(3):593-600. DOI: http://dx.doi.org/10.15446/abc.v21n3.51651 ABSTRACT Red-tail coral snake (Micrurus mipartitus) is a long and thin bicolor coral snake widely distributed in Colombia and is the coral that causes the majority of accidents in the Andean region, so it is important to keep this species in captivity for anti-venom production and research. However, maintaining this species in captivity is very difficult because it refuses to feed, in addition to the high mortality rate due to maladaptation syndrome. In this study a force feeding diet, diverse substrates for maintenance and a milking technique were evaluated. -
South American Coral Snake) Venom Assessed in Vitro and Neutralization by Antivenom
Peripheral neurotoxicity of Micrurus lemniscatus lemniscatus (South American coral snake) venom assessed in vitro and neutralization by antivenom Rafael S. Florianoa, Raphael Schezaro-Ramosa, Nelson J. Silva Jr.b, Fábio Bucaretchic Edward G. Rowand and Stephen Hyslopa,* aDepartamento de Farmacologia, Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, 13083-887, Campinas, SP, Brazil. bDepartamento de Biologia, Pontifícia Universidade Católica de Goiás (PUC-GO), Rua 232, 128, 74605-140, Goiânia, GO, Brazil. cDepartamento de Pediatria e Centro de Informação e Assistência Toxicológica de Campinas (CIATox), Faculdade de Ciências Médicas, Universidade Estadual de Campinas (UNICAMP), Rua Tessália Vieira de Camargo, 126, Cidade Universitária Zeferino Vaz, 13083-887, Campinas, SP, Brazil. dStrathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Cathedral Street, 161, G4 0RE, Glasgow, UK Short title: Neurotoxicity of M. l. lemniscatus venom *Corresponding author: S. Hyslop ([email protected]), Tel.: +55 19 3521-9536 Acknowledgments: RSF was supported by a post-doctoral fellowship from Fundação de Amparo à Pesquisa do Estado de São Paulo – Brasil (FAPESP, grant no. 2014/24409-8) and RSR was supported by a PhD studentship from Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES, grant no. 02-P-4572/2018, Finance code 001). NJS and SH are supported by research fellowships from Conselho Nacional de Desenvolvimento Científico e Tecnológico – Brasil (CNPq, grant nos. 309320/2016-0 and 310547/2014-8, respectively). 1 Abstract We investigated the effect of South American coral snake (Micrurus lemniscatus lemniscatus) venom on neurotransmission in vertebrate nerve-muscle preparations in vitro. -
Myths Surrounding Snakes
MYTHS SURROUNDING SNAKES MYTH 1: Bites from baby venomous snakes are more dangerous than those from adults because they always deliver a full dose of venom. The legend goes that young snakes have not yet learned how to control the amount of venom they inject. They are therefore more dangerous than adult snakes, which will restrict the amount of venom they use in a bite or “dry bite”. This is simply untrue and all the evidence points towards bites from adults being more severe. Tests have shown that juvenile snakes can control their venom just as much as adults. Furthermore lets consider the following factors: adults have significantly larger fangs to deliver their venom and considerably more venom available than a juvenile. Therefore if a juvenile has venom glands only big enough to hold a 2ml of venom compared to an adult that can hold 30ml or more, then the bite from an adult will always have the potential to be more severe. I presume the reason this myth came into existence was to dissuade people from having a carefree attitude towards the potential dangers of a juvenile snake. The moral of the story is to treat every snake as a potentially dangerous and never expose your self to a situation where a snake of any size can bite you. MYTH 2: If you see a snake they’ll always be more Although it is possible to see more than one snake, for the most part this statement is untrue. Snakes are solitary animals for most of their lives so generally you will only ever encounter individuals. -
Molecular Evolution of Three-Finger Toxins in the Long-Glanded Coral Snake Species Calliophis Bivirgatus
toxins Article Electric Blue: Molecular Evolution of Three-Finger Toxins in the Long-Glanded Coral Snake Species Calliophis bivirgatus Daniel Dashevsky 1,2 , Darin Rokyta 3 , Nathaniel Frank 4, Amanda Nouwens 5 and Bryan G. Fry 1,* 1 Venom Evolution Lab, School of Biological Sciences, University of Queensland, St Lucia, QLD 4072, Australia; [email protected] 2 Australian National Insect Collection, Commonwealth Science and Industry Research Organization, Canberra, ACT 2601, Australia 3 Department of Biological Sciences, Florida State University, Tallahassee, FL 24105, USA; [email protected] 4 MToxins Venom Lab, 717 Oregon Street, Oshkosh, WI 54902, USA; [email protected] 5 School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, QLD 4072, Australia; [email protected] * Correspondence: [email protected], Tel.: +61-7-336-58515 Abstract: The genus Calliophis is the most basal branch of the family Elapidae and several species in it have developed highly elongated venom glands. Recent research has shown that C. bivirgatus has evolved a seemingly unique toxin (calliotoxin) that produces spastic paralysis in their prey by acting on the voltage-gated sodium (NaV) channels. We assembled a transcriptome from C. bivirgatus to investigate the molecular characteristics of these toxins and the venom as a whole. We find strong confirmation that this genus produces the classic elapid eight-cysteine three-finger toxins, that δ-elapitoxins (toxins that resemble calliotoxin) are responsible for a substantial portion of the venom composition, and that these toxins form a distinct clade within a larger, more diverse clade of C. bivirgatus three-finger toxins. This broader clade of C. -
FAMILY VIPERIDAE: VENOMOUS “Pit Vipers” Whose Fangs Fold up Against the Roof of Their Mouth, Such As Rattlesnakes, Copperheads, and Cottonmouths
FAMILY VIPERIDAE: VENOMOUS “pit vipers” whose fangs fold up against the roof of their mouth, such as rattlesnakes, copperheads, and cottonmouths COPPERHEAD—Agkistrodon contortrix Uncommon to common. Copperheads are found in wet wooded areas, high areas in swamps, and mountainous habitats, although they may be encountered occasionally in most terrestrial habitats. Adults usually are 2 to 3 ft. long. Their general appearance is light brown or pinkish with darker, saddle-shaped crossbands. The head is solid brown. Their leaf-pattern camouflage permits copperheads to be sit- Juvenile copper- heads and-wait predators, concealed not only from their prey but also from their enemies. Copperheads feed on mice, small birds, lizards, snakes, amphibians, and insects, especially cicadas. Like young cottonmouths, baby copperheads have a bright yellow tail that is used to lure small prey animals. 0123ft. Heat-sensing “pit” characteristic of pit vipers CANEBRAKE OR TIMBER RATTLESNAKE—Crotalus horridus Mountain form Common. This species occupies a wide diversity of terrestrial habitats, but is found most frequently in deciduous forests and high ground in swamps. Heavy-bodied adults are usually 3 to 4, and occasionally 5, ft. long. Their basic color is gray with black crossbands that usually are chevron-shaped. Timber rattlesnakes feed on various rodents, rabbits, and occasionally birds. These rattlesnakes are generally passive if not disturbed or pestered in some way. When a rattlesnake is Coastal plain form encountered, the safest reaction is to back away--it will not try to attack you if you leave it alone. 012345 ft. EASTERN DIAMONDBACK RATTLESNAKE— Crotalus adamanteus Rare. This rattlesnake is found in both wet and dry terrestrial habitats including palmetto stands, pine woods, and swamp margins. -
A New Colour Morph of Calliophis Bibroni (Squamata: Elapidae) and Evidence for Müllerian Mimicry in Tropical Indian Coralsnakes
Herpetology Notes, volume 10: 209-217 (2017) (published online on 25 April 2017) A new colour morph of Calliophis bibroni (Squamata: Elapidae) and evidence for Müllerian mimicry in Tropical Indian coralsnakes Dileep Kumar Raveendran1, V. Deepak2, Eric N. Smith3 and Utpal Smart3,* Abstract. Meristic and molecular data provide evidence for an exceptional multi-chromatic defensive strategy in an Indian coralsnake, Calliophis bibroni from the state of Kerala. We propose a mimicry hypothesis involving a combination of an ontogenetic colour shift at maturity, from initial Müllerian mimicry with a subtropical Indian coralsnake Sinomicrurus macclellandii, to one of two very different adult dorsal colours: 1) an aposematic pattern resembling that of the sympatric tropical Indian coralsnake Calliophis castoe or 2) a cryptic dark brown colouration. To this end, we succinctly juxtapose the rich body of work on mimicry in New World elapids to that of their Old World counterparts in an attempt to address the exciting yet unexplored prospect of investigating mimicry, crypsis and aposematism in Old World coralsnakes. Key Words. Aposematism, crypsis, Indian coralsnakes, genetic distance, meristics, mimicry Introduction Müllerian co-mimics benefit from sharing the same signal since this reduces the number of individuals that Animal colouration provides many functions; the most have to be sacrificed per prey species to educate local important among them is probably predator avoidance predators of a given aposematic colouration (Müller, and deterrence. Camouflage, or crypsis, blends animals 1879). Furthermore, possibly to balance prey-predator into their environment while deimatism surprises and dynamics, some mimics may replicate the colours confuses predators with the display of startling colour or patterns of dangerous models which lack bright, patterns. -
Snakebite: the World's Biggest Hidden Health Crisis
Snakebite: The world's biggest hidden health crisis Snakebite is a potentially life-threatening neglected tropical disease (NTD) that is responsible for immense suffering among some 5.8 billion people who are at risk of encountering a venomous snake. The human cost of snakebite Snakebite Treatment Timeline Each year, approximately 5.4 million people are bitten by a snake, of whom 2.7 million are injected with venom. The first snake antivenom This leads to 400,000 people being permanently dis- produced, against the Indian Cobra. abled and between 83,000-138,000 deaths annually, Immunotherapy with animal- mostly in sub-Saharan Africa and South Asia. 1895 derived antivenom has continued to be the main treatment for snakebite evenoming for 120 years Snakebite: both a consequence and a cause of tropical poverty The Fav-Afrique antivenom, 2014 produced by Sanofi Pasteur (France) Survivors of untreated envenoming may be left with permanently discontinued amputation, blindness, mental health issues, and other forms of disability that severely affect their productivity. World Health Organization Most victims are agricultural workers and children in 2018 (WHO) lists snakebite envenoming the poorest parts of Africa and Asia. The economic as a neglected tropical disease cost of treating snakebite envenoming is unimaginable in most communities and puts families and communi- ties at risk of economic peril just to pay for treatment. WHO launches a strategy to prevent and control snakebite envenoming, including a program targeting affected communities and their health systems Global antivenom crisis 2019 The world produces less than half of the antivenom it The Scientific Research Partnership needs, and this only covers 57% of the world’s species for Neglected Tropical Snakbites of venomous snake. -
The Venomous Snakes of Texas Health Service Region 6/5S
The Venomous Snakes of Texas Health Service Region 6/5S: A Reference to Snake Identification, Field Safety, Basic Safe Capture and Handling Methods and First Aid Measures for Reptile Envenomation Edward J. Wozniak DVM, PhD, William M. Niederhofer ACO & John Wisser MS. Texas A&M University Health Science Center, Institute for Biosciences and Technology, Program for Animal Resources, 2121 W Holcombe Blvd, Houston, TX 77030 (Wozniak) City Of Pearland Animal Control, 2002 Old Alvin Rd. Pearland, Texas 77581 (Niederhofer) 464 County Road 949 E Alvin, Texas 77511 (Wisser) Corresponding Author: Edward J. Wozniak DVM, PhD, Texas A&M University Health Science Center, Institute for Biosciences and Technology, Program for Animal Resources, 2121 W Holcombe Blvd, Houston, TX 77030 [email protected] ABSTRACT: Each year numerous emergency response personnel including animal control officers, police officers, wildlife rehabilitators, public health officers and others either respond to calls involving venomous snakes or are forced to venture into the haunts of these animals in the scope of their regular duties. North America is home to two distinct families of native venomous snakes: Viperidae (rattlesnakes, copperheads and cottonmouths) and Elapidae (coral snakes) and southeastern Texas has indigenous species representing both groups. While some of these snakes are easily identified, some are not and many rank amongst the most feared and misunderstood animals on earth. This article specifically addresses all of the native species of venomous snakes that inhabit Health Service Region 6/5s and is intended to serve as a reference to snake identification, field safety, basic safe capture and handling methods and the currently recommended first aide measures for reptile envenomation.