Results 131 to 140 of about 4,782 (178)

Preserved reptile scales retain microscopic features, revealing a new instance of convergent evolution. [PDF]

J R Soc Interface
Riiska CA, Schuett GW, Mendelson Iii JR, Rieser JM.   +3 more
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Characterization of the venom and external morphology of a natural hybrid between Crotalus atrox and Crotalus mictlantecuhtli

Toxicon, 2022
Here we report, for the first time, a natural hybrid between Crotalus atrox and C. mictlantecuhtli based on intermediate characteristics of the external morphology and venom. Morphologically, the individual had characteristics of both parent species. The hybrid's venom exhibited an intermediate composition including the presence of crotoxin which has ...
Edgar Neri-Castro, Jason L. Strickland, Ruben Alonso Carbajal-Márquez, Jesús Zuñiga Adán, Roberto Ponce-López, Felipe Olvera-Rodríguez, Alejandro Alagón   +6 more
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Hematology of the sidewinder (Crotalus cerastes)

Comparative Biochemistry and Physiology Part A: Physiology, 1975
Abstract 1. 1. Blood characteristics of the sidewinder Crotalus cerastes were studied. Values for hemoglobin, hematocrit, red cell count, pH, blood oxygen capacity, white cell counts and differentials were determined. 2. 2. Hemoglobin ranged from 5·00 to 8·51 g % (mean 7·50), hematocrits 22·0–36·0% (mean 28·60), red cell counts 0·45-0·95 ...
J A, MacMahon, A H, Hamer
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Seasonality in Crotalus durissus venom

Toxicon
Rattlesnakes belonging to the genus Crotalus are widely distributed throughout the Americas. In Brazil, symptoms commonly associated with envenomation by Crotalus durissus collilineatus include myalgia, rhabdomyolysis, renal failure, neurotoxicity, and progressive paralysis, which are related to the protein composition of this venom.
Lidia Jorge Tasima, Eduardo Oliveira Venâncio de Lima, Daniela Miki Hatakeyama, Jarbas Prado Vidueiros, Daniel Rodrigues Stuginski, Kathleen Fernandes Grego, Anita Mitico Tanaka-Azevedo   +6 more
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A comparative study of biological activities of crotoxin and CB fraction of venoms from Crotalus durissus terrificus, Crotalus durissus cascavella and Crotalus durissus collilineatus

Toxicon, 2004
In Brazil, the Crotalus durissus terrificus subspecie is the most studied, particularly concerning its crotoxin. Crotoxin is the major toxic component of the South American rattlesnake Crotalus durissus venom. It is composed of two different subunits, CA called crotapotin and CB weakly toxic phospholipase A2 with high enzymatic activity. In this paper,
A, Rangel-Santos, E C, Dos-Santos, M, Lopes-Ferreira, C, Lima, D F, Cardoso, I, Mota   +5 more
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Physocephalus sexalatus (Nematoda: Spirurida: Spirocercidae) in Three Species of Rattlesnakes, Crotalus atrox, Crotalus lepidus, and Crotalus scutulatus, from Southwestern Texas

Journal of Herpetological Medicine and Surgery, 2004
ABSTRACT Third-stage larval spirurid nematodes, Physocephalus sexalatus, were found to be infecting three species of rattlesnakes, Crotalus spp., from southwestern Texas. These roundworms were encysted in granulomas of the stomach of a western diamondback rattlesnake, C. atrox, a mottled rock rattlesnake, C.
Chris T. McAllister, Charles R. Bursey, John F. Roberts   +2 more
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Regional differences in content of small basic peptide toxins in the venoms of Crotalus adamanteus and Crotalus horridus

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1991
1. Reverse-phase HPLC and organic solvents were used to isolate small basic peptide (SBP) toxins from the venoms of Crotalus adamanteus, C. durissus terrificus, C. horridus, C. scutulatus scutulatus, C. viridis concolor, C. viridis helleri and C. viridis viridis. 2.
R C, Straight, J L, Glenn, T B, Wolt, M C, Wolfe   +3 more
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Cardiovascular response to Crotalus venom

Toxicon, 1962
The intravenous injection of Crotalus atrox venom produces an immediate and profound fall in systemic arterial pressure. This change was observed in both cats and dogs, and it has been seen in previous experiments with rabbits, goats, guinea pigs and monkeys. In the cat, the hypotensive crisis does not appear to be due to a decrease in heart rate or
Findlay E. Russell, Fred W. Buess, Jerome Strassberg   +2 more
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ENVENENAMENTO POR CROTALUS

2023
Letícia Cavalcante Pinho, Francinaldo Filho Castro Monteiro, Danya Lima Bandeira, Ranieri Sales de Souza Santos, Alice Maria Costa Martin   +4 more
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Timber Rattlesnake, Crotalus horridus

2004
Fact sheet on endangered or threatened species in New Jersey, containing identification, habitat, and status and conservation information.
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