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Registros recuperados: 22
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Australian Tropical Reptile Species: Ecological Status, Public Valuation and Attitudes to their Conservation and Commercial Use AgEcon
Tisdell, Clement A.; Wilson, Clevo; Swarna Nantha, Hemanath.
Five species of reptiles present in tropical Australia are considered in this study. These are the hawksbill turtle (Eretmochelys imbricata); the northern long-necked turtle (Chelodina rugosa); the taipan snake (Oxyuranus scutellatus); the freshwater crocodile (Crocodylus johnstoni); and the saltwater crocodile (Crocodylus porosus). Background information is provided on the ecological status of each of these species and after outlining their human use (including commercial use) and management in Australia, an experimental survey method is introduced and results from its application are reported and analysed. The survey method involves two serial surveys of a sample of 204 Brisbane (Australia) residents. The first survey is based on the initial knowledge...
Tipo: Working or Discussion Paper Palavras-chave: Public Valuation; Australia; Turtle; Saltwater and freshwater crocodiles; Snake; Conservation; Environmental Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/51408
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Defensive repertoire of Xenodon dorbignyi (Serpentes, Dipsadidae) Biota Neotropica
Tozetti,Alexandro Marques; Oliveira,Roberto Baptista de; Pontes,Glaucia Maria Funk.
The ability of a species to defend itself against a predator is directly correlated with its survivorship. Thus, prey/predator interaction mechanisms are important elements of the natural history of species. In this study, we examined the defensive repertoire of the South-American hognose snake (Xenodon dorbignyi) through simulations of predator attacks in the field. Nine defensive displays were observed. The most frequently observed displays were erratic movements, body flattening, head triangulation and tail display. No differences were detected in the defensive strategies shown by males and females, regardless of their reproductive state. Our findings suggest that X. dorbignyi has the ability to evaluate the level of threat imposed by the aggressor,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Defensive behavior; Predation; Snake; Display.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000300016
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Divergences between the Brazilian national information systems for recording deaths from venomous animals J. Venom. Anim. Toxins incl. Trop. Dis.
Bochner,Rosany; Souza,Claudio Mauricio Vieira de.
Abstract Background: This paper aims to highlight and analyze discrepancies in reporting of deaths due to venomous animals in Brazil, from 2001 to 2015, between two national information systems: The Notifiable Diseases Information System (Sistema de Informação de Agravos de Notificação - SINAN) and the Mortality Information System (Sistema de Informações sobre Mortalidade - SIM). Methods: Descriptive and comparative study of the SINAN and SIM information systems, was conducted via the following steps: collecting the death notices from SINAN and SIM; constructing tables and comparative graphics; and, only in scorpion sting fatalities, analyzing the distribution of deaths by age group as described in the specialized literature. Results: While SINAN...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Information system; Death; SINAN; SIM; Snake; Spider; Scorpion; Bee.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992019000100313
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Does gestation or feeding affect the body temperature of the golden lancehead, Bothrops insularis (Squamata: Viperidae) under field conditions? Rev. Bras. Zool.
Bovo,Rafael P.; Marques,Otavio A. V.; Andrade,Denis V..
Temperature affects physiological performance in reptiles and, therefore, body temperature (Tb) control is argued to have an important adaptive value. Alterations in Tb due to transient changes in physiological state, as during digestion or gestation, are often linked to the potential benefits of a more precise Tb regulation. However, such thermoregulatory responses in nature remain controversial, particularly for tropical snakes. Herein, we measured Tb of the golden lanceheads, Bothrops insularis (Amaral, 1921), at Queimada Grande Island, southeastern Brazil, to test for alteration in selected body temperatures associated with feeding or gestation. We found no evidence that postprandial or gravid snakes selected for higher Tb indicating that, under...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestion; Gravid females; Postprandial thermophilic response; Snake; Thermoregulation; Neotropics.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000600020
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Ecology of a snake assemblage in the Atlantic Forest of southeastern Brazil Pap. Avulsos de Zool. (São Paulo)
Hartmann,Paulo A.; Hartmann,Marília T.; Martins,Marcio.
The main objective of this study was to examine the natural history and the ecology of the species that constitute a snake assemblage in the Atlantic Rainforest, at Núcleo Picinguaba, Parque Estadual da Serra do Mar, located on the northern coast of the state of São Paulo, southeastern Brazil. The main aspects studied were: richness, relative abundance, daily and seasonal activity, and substrate use. We also provide additional information on natural history of the snakes. A total of 282 snakes, distributed over 24 species, belonging to 16 genera and four families, has been found within the area of the Núcleo Picinguaba. Species sampled more frequently were Bothrops jararaca and B. jararacussu. The methods that yielded the best results were time constrained...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Assemblage; Snake; Diet; Habitat use; Activity.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009002700001
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Feeding ecology of Liophis reginae semilineatus (Serpentes: Colubridae: Xenodontinae) in eastern Amazon, Brazil Rev. Bras. Zool.
Albarelli,Luiz Paulo P.; Santos-Costa,Maria C..
We studied the diet of Liophis reginae semilineatus (Wagler, 1824) from eastern Amazon, Brazil, based on the analysis of 182 preserved specimens. Thirty-six individuals had prey in their stomachs; 34 (95%) contained exclusively anurans and 2 (5%) contained both anurans and lizards. The most common prey items were small Leptodactylus sp. (33.3%), followed by Physalaemus ephippifer (Steindachner, 1864) (10.3%). Prey ingested head-first (78%; n = 25) were significantly larger than prey ingested tail-first (22%; n = 7). Females of L. reginae semilineatus have longer and wider heads than conspecific males with the same body length, which correspond to sexual divergences in the diet (size of the prey). No correlation was found between snake head length vs. prey...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anurophagous; Diet; Neotropical; Snake.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000100013
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Gross and histologic features of gastritis due to Ophidascaris arndti in tropical rattlesnakes ( Crotalus durissus ) Arq. Bras. Med. Vet. Zootec.
Mello,É.M.; Salgado,B.S.; Cassali,G.D.; Guimarães,M.P..
ABSTRACT The tropical rattlesnake (Crotalus durissus) is a snake of great importance for biomedical industry since its poison is used for the production of antiophidic serum and researches. Several conditions related to animal health, such as diseases and parasites, which can promote the reduction of poison production by these snakes should be investigated. Accordingly, the aim of this study was to characterize the gross and microscopic lesions related to the presence of Ophidascaris arndti in stomachs of tropical rattlesnakes. The gastrointestinal tract of thirty-five South American rattlesnakes captured in Southeastern region of Brazil were analyzed and nineteen animals showed infestation by the parasites, found in the small intestine and, especially, in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Snake; Parasitic granuloma; Parasitic gastritis; Nematoda.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000200415
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Hematology and plasma biochemistry of wild-caught Indian cobra Naja naja(Linnaeus, 1758) J. Venom. Anim. Toxins incl. Trop. Dis.
Parida,Siba Prasad; Dutta,Sushil Kumar; Pal,Arttatrana.
Background : Hematology and plasma biochemistry parameters are useful in the assessment and management of snake physiological status. Although reference ranges are readily available for many snake species, they are lacking for most venomous ophidians. We determined hematology and plasma biochemistry reference ranges for the wild-caught Indian cobra, Naja naja.Results : Blood samples, taken from the ventral tail vein, were assessed for erythrocyte count, total leukocyte count, hemoglobin concentration, hematocrit, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration, considering the sex of snakes. Results revealed the erythrocyte numbers (male, 390000 ± 12503.33/mm3 and female, 347500 ± 7505.55/mm3), shapes and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Reference range; Snake; Naja naja; Hematology; Plasma biochemistry.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992014000200320
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Identification of microchips through diagnostic imaging helps to determine the longevity of the golden lancehead (Bothrops insularis) in captivity Arq. Bras. Med. Vet. Zootec.
Garcia,V.C.; Unruh,S.M.; Almeida-Santos,S.M..
RESUMO As serpentes vindas da natureza e encaminhadas para centros de reabilitação ou de pesquisa têm uma idade incerta. Na natureza, esses animais, muitas vezes atingem um tamanho corpóreo menor do que os indivíduos cativos devido a uma menor frequência de alimentação. Assim, a idade de uma cobra recém-chegada da natureza é geralmente estimada com base em seu tamanho corpóreo, o qual é comparado com dados em cativeiro. A utilização dos meios de diagnóstico por imagem tem auxiliado a medicina na análise das serpentes em cativeiro, mediante avaliação da estrutura óssea, dos órgãos e de alterações. Este trabalho relata o uso de diagnóstico por imagem (radiografia e ultrassonografia) para identificar a presença de microchips e, consequentemente, estimar a...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Snake; Radiology; Ultrasound; Body size; Age.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100281
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Osteopetrosis and osteonecrosis in snake Boa constrictor Arq. Bras. Med. Vet. Zootec.
Ocarino,N.M.; Goulart,C.E.; Falci,S.M.; Souza,P.C.; Serakides,R..
Uma jibóia (Boa constrictor), de onze anos de cativeiro, apresentou à seis meses um histórico de aumento de volume ao longo da coluna vertebral e perda progressiva dos movimentos e de apetite. Exames radiológicos revelaram aumento da opacidade, áreas de excrescências ósseas e inúmeras fraturas ao longo da coluna. Devido o prognóstico desfavorável, a serpente foi eutanasiada. À necropsia, aumento de volume com estenose do canal vertebral e compressão da medula espinhal foram observados, juntamente com fraturas completas de corpos vertebrais. O diagnóstico de osteopetrose e osteonecrose foi firmado à histologia.
Tipo: Info:eu-repo/semantics/other Palavras-chave: Snake; Boa constrictor; Osteopetrosis; Osteonecrosis.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000500039
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Paths to the discovery of antivenom serotherapy in France J. Venom. Anim. Toxins incl. Trop. Dis.
Bochner,Rosany.
Abstract The current study presents a descriptive chronological survey of the articles published by Césaire Auguste Phisalix and Albert Calmette on snake poison, with the aim of shedding a light on the areas of research and reasoning followed by these scientists, leading up to their simultaneous discovery of antivenom serotherapy in 1894. The path taken by Phisalix is revealed in 15 articles that demonstrate the motivation of a naturalist and the way he confronted the puzzle of immunity against snake venom. In the case of Calmette, two articles preceded the discovery; microbiology was his theoretical base and the Pasteurian spirit of solving health problems his driving force. These two researchers followed distinct paths, mobilized by different...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calmette; Phisalix; Antivenom serotherapy; Snake; History of science.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992016000100201
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Polychromatism of populations of Corallus hortulanus (Squamata: Boidae) from the southern Amazon Basin, Brazil Acta Amazonica
DUARTE,Mel de Oliveira; FREITAS,Tiago Magalhães da Silva; PRUDENTE,Ana Lúcia da Costa.
The Amazon tree boa Corallus hortulanus is known for featuring a wide variation in color pattern and design markings. Although there are studies on its polychromatism, none of them addresses the geographic variation in the color pattern of this species. The aim of this study was to describe the chromatic variation found in the populations of C. hortulanus from the southern Amazon Basin and its relationship with geographic distribution of the species. Analysis of both design markings and color patterns on 112 C. hortulanus specimens from the southern Amazon Basin interfluves resulted in the identification of six distinct morphotypes. Grayish-brown coloration and elongated diamond-shaped patterns were the most frequent patterns. Two morphotypes showed a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Color patterns; Snake; Amazonia.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672015000400373
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Potential seed dispersers: a new facet of the ecological role of Boa constrictor constrictor Linnaeus 1758 Biota Neotropica
Cabral,Sofia de O.; Freitas,Itainara da S.; Morlanes,Viviane; Katzenberger,Marco; Calabuig,Cecilia.
Abstract: The boa (Boa constrictor) is considered a top predator and its diet includes a wide variety of birds, mammals, and other reptiles, all related directly to their availability in the environment inhabited by the snake. Seven boas were found roadkilled on highways adjacent to conservation units in the semi-arid region of Rio Grande do Norte state, in northeastern Brazil. Their digestive tract was analyzed to identify food items and classify them according to their orientation in the tract. Among the food items found, the white-eared opossum (Didelphis albiventris) and the black-and-white tegu (Salvator merianae) were ingested head-first, while teeth of a punaré (Thrichomys laurentius) and a Spix's yellow-toothed cavy (Galea spixii) and hairs of an...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Caatinga; Feeding behavior; Snake; Seed dispersal; Zoochory.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400203
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Prevalence of Hepatozoon spp. (Apicomplexa, Hepatozoidae) among recently captured Brazilian snakes Arq. Bras. Med. Vet. Zootec.
O'Dwyer,L.H.; Moço,T.C.; Barrella,T.H.; Vilela,F.C.; Silva,R.J..
The goal of this study was to determine the prevalence of Hepatozoon spp. infection in recently captured snakes from Botucatu, São Paulo State, Brazil. Blood was collected from all snakes by ventral tail venipuncture. Blood smears were air dried, fixed with methanol, and stained with 10% Giemsa solution. The slides were microscopically examined for detection of hemoparasites by light microscopy at 250x magnification. A total of 238 snakes from 23 species were examined, of which 135 (56.7%) were venomous and 103 (43.3%) non-venomous snakes. The more numerous venomous species sampled were Crotalus durissus terrificus (n=108) and Bothrops jararaca (n=17) and non-venomous snakes were Oxyrhopus guibei (n=35), Boa constrictor amarali (n=18), and Waglerophis...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Snake; Hepatozoon; Prevalence; Infection.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352003000300010
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Prevalência de enterobactérias em Bothrops jararaca no Estado de São Paulo: levantamento microbiológico e padrões de resistência antimicrobiana - DOI: 10.4025/actascibiolsci.v30i3.536 Biological Sciences
Bastos, Henrique Marçal; Lopes, Luiz Fernando Larangeira; USP - São Paulo; Gattamorta, Marco Aurélio; UNICAMP - Campinas; Matushima, Eliana Reiko; USP - São Paulo.
Existem poucos levantamentos microbiológicos em répteis no Brasil. O estudo aqui descrito enfoca uma espécie de serpente de grande interesse médico e serve como base para outros estudos e comparações. As amostras foram colhidas diretamente do cólon de jararacas adultas e saudáveis. O material foi semeado em ágar MacConkey (Difco®) e ágar XLT4 (Difco®). Os isolados foram identificados por meio do Sistema API 20E de Identificação Bioquímica (Galerias API-BioMériux®). Os isolados de Salmonella sp. foram submetidos à sorotipagem. Por fim, as colônias foram submetidas ao teste de sensibilidade antimicrobiana. Foram obtidos vários gêneros da família Enterobacteriaceae (Citrobacter, Enterobacter, Escherichia, Klebsiella, Kluyvera, Morganella, Proteus,...
Palavras-chave: 2.00.00.00-6 Ciências Biológicas Bothrops jararaca; Snake; Reptile; Intestinal microbiota; Enterobacteriaceae; Salmonella. Bothrops jararaca; Snake; Reptile; Intestinal microbiota; Enterobacteriaceae; Salmonella.
Ano: 2008 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/536
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Pulmonary, microbiological and hematological changes in Crotalus durissus terrificus (Serpentes, Viperidae) parasitized by nematodes of the genus Rhabdias (Nematoda, Rhabdiasidae) Arq. Bras. Med. Vet. Zootec.
Santos,K.R.; Takahira,R.K.; Rall,V.L.M.; Calderón,C.; Sequeira,J.L.; Silva,R.J..
This study reported the pulmonary, microbiological, and hematological alterations in Crotalus durissus terrificus parasitized by nematodes of the genus Rhabdias. Histological, microbiological, and hematological analysis were performed on parasitized (n=6) and non-parasitized (n=6) snakes. Granulocytic and mononuclear cell infiltrates in the pulmonary parenchyma and epithelium were also observed during the histological analysis of parasitized snakes. Microbiological analysis of parasitized animals revealed the following Gram-negative bacteria: Citrobacter divergens, Burkholderia cepacia, Stenotrophomonas maltophilia, Proteus vulgaris, Enterobacter sakazakii, Enterobacter ammnigenus, Pseudomonas aeruginosa, Pantoea sp. and Providencia rettgeri. In...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Snake; Crotalus durissus terrificus; Rhabdias spp.; Histopathology; Microbiology; Hematology.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000300022
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Purification and partial characterization of phospholipases A2 from Bothrops asper (barba amarilla) snake venom from Chiriguaná (Cesar, Colombia) J. Venom. Anim. Toxins incl. Trop. Dis.
Ramírez-Avila,J.; Quevedo,B. E.; López,E.; Renjifo,J. M..
Components with phospholipase A2 activity were isolated by gel filtration and cationic exchange chromatography from the venom of Bothrops asper snakes from Chiriguaná, Colombia (9°22´N; 73°37´W). Five fractions were obtained by the gel filtration, and PLA2 activity was found in fraction 3 (F3). In the cationic exchange chromatography, F3 showed eight components with PLA2 activity. Six of these components appeared as one band in polyacrylamide gel electrophoresis (SDS-PAGE). Fractions II and VII exhibited an optimal activity at pH 9 and 52ºC. The optimum calcium concentration for fraction II was 48 mM and for fraction VII, 384 mM. Both fractions showed thermal stability. Fraction II was stable at pH values between 2.5 and 9, and fraction VII, between 2.5...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phospholipase; Isoenzymes; Snake; Venom; Bothrops asper; Colombia.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992004000300005
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Records of the rattlesnakes Crotalus durissus terrificus (Laurenti) (Serpentes, Viperidae) in the State of Rio de Janeiro, Brazil: a possible case of invasion facilitated by deforestation Zoologia
Bastos,Eduardo G. de M.; Araújo,Alexandre F. B. de; Silva,Hélio R. da.
This paper documents the presence of rattlesnakes, as an invasive species, in several municipalities of the State of Rio de Janeiro. As previous registers indicate, these snakes probably invaded at least the municipality of Valença carried by floodwaters between the decades of 1950 and 1960. In the new environment, along the margins of the Rio Preto, these snakes were able to establish new populations in deforested areas turned into cattle grazing. The presence of rattlesnake in the municipality of Barra do Piraí, a municipality that has no border with Rio Preto, however, indicates that these snakes dispersal into new areas may be facilitated by open areas, represented by pastures, created after deforestations.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Habitat disturbance; Range expansion; Rattlesnake; Snake.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000300047
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Renal failure and neonatal death following snakebite during pregnancy: a case report J. Venom. Anim. Toxins incl. Trop. Dis.
Adam,G. K.; Hussein,S. M.; Adam,I..
A thirty-five-year-old Sudanese woman (gravida 4, para 3), at 34 weeks gestational age, presented with snakebite in her right leg. Examination of the cardiovascular, respiratory, gastrointestinal, and central nervous systems revealed no abnormalities. Her blood urea was 58 mg/dl; creatinine, 2.6 mg/dl; whole blood clotting time, 5:35 minutes. The patient was diagnosed as having acute renal failure and was then managed conservatively. She received polyvalent antivenom serum intravenously. On the next day, she delivered prematurely and the baby passed away due to respiratory distress. There was no postpartum bleeding and the patient's clotting time was 5:30 minutes. She was discharged from the hospital after 7 days when her clinical, biochemical and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Snake; Renal; Pregnancy; Perinatal; Sudan.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992006000400011
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The occurrence of Crepidobothrium sp. (Cestoda, Proteocephalidae) in Bothrops moojeni (Hoge) (Serpentes, Viperidae) Zoologia
Silva,Reinaldo José da; Karasawa,Andrea Satie Matsubara; Cherubini,André Luis; Barrella,Thomaz Henrique; Lopes,Carlos Alberto de Magalhães; Amarante,Alessandro Francisco Talamini.
The occurrence of Crepidobothrium sp.(Cestoda, Proteocephalidae) in the intestine of Bothrops moojeni (Hoge,1965)(Serpentes, Viperidae) is reported. The host snake was rescued from the fauna in Porto Primavera dam, Mato Grosso do Sul State, Brazil. The snake died in captivity on July 13,1999. At necropsy, 28 tapeworms were found in the snake intestine. The analysis of specimens morphology allowed the conclusion that they belong to the Crepidobothrium (Monticelli, 1900) genus. It was not possible to determine the Crepidobothrium species due to the lack of the gravid proglottids. This is the first report of B. moojeni as a host of cestodes.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cestoda; Proteocephalidae; Crepidobothrium; Bothrops moojeni; Snake.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000200006
Registros recuperados: 22
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