Viperidae
Mato Grosso Lancehead
VenomousBothrops mattogrossensis
6 photographs of the Mato Grosso Lancehead. © Thomaz Ricardo Favreto Sinani.
The Mato Grosso Lancehead (Bothrops mattogrossensis) is a venomous snake in the Viperidae family, recorded in 4 countries.
If you are bitten
This is a venomous snake. Treat any bite as a medical emergency: stay calm, keep the bitten limb still and roughly level with the heart, remove rings and tight clothing, and get to emergency care immediately. Do not apply a tourniquet, cut the wound, apply ice, or try to suck out venom. Call your local emergency number or poison center.
- Family
- Viperidae
- Danger
- high
About the Mato Grosso Lancehead
Bothrops mattogrossensis, also known as Boca-de-Sapo, Jararaca, and Jararaca-Pintada in Portuguese, is a species of pit viper from Argentina, Bolivia, Brazil and Peru. As with all vipers, they are venomous. It has been mistaken for a subspecies of Bothrops neuweidi.
Description
Bothrops mattogrossensis has a unique colouring of its supralabial scales, with them either being uniform or displaying large dark markings which take up 50% of the supralabials and always meet under the eye. Its body also displays large dark markings, and its head displays stripes around the eyes.
Diet
Bothrops mattogrossensis is known to eat mammals, frogs, lizards, other snakes, and centipedes, giving it a varied diet compared to other pit vipers such as B. neuweidi.
Scientific naming
The name mattogrossensis comes from the name of the area the species was first found in, Mato Grosso. Amaral misspelt the area name as Matto-Grosso in his paper, and so the "proper" name is believed to be matogrossensis. However, the original spelling is the official name and so it is expected to be spelt as such in official papers.
Reproduction
Bothrops mattogrossensis reproduces sexually and is ovoviviparous.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Mato Grosso Lancehead
- Is the Mato Grosso Lancehead venomous?
- Yes. The Mato Grosso Lancehead (Bothrops mattogrossensis) is venomous and belongs to the Viperidae family (viper). Its bite is considered high risk to people. Treat any bite as a medical emergency.
- Is the Mato Grosso Lancehead poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Mato Grosso Lancehead is venomous, delivering venom through a bite.
- Is the Mato Grosso Lancehead dangerous?
- This is a venomous snake. Treat any bite as a medical emergency: stay calm, keep the bitten limb still and roughly level with the heart, remove rings and tight clothing, and get to emergency care immediately. Do not apply a tourniquet, cut the wound, apply ice, or try to suck out venom. Call your local emergency number or poison center.
- Where does the Mato Grosso Lancehead live?
- The Mato Grosso Lancehead has verified records in 4 countries, including Bolivia (Plurinational State of), Brazil, Paraguay. See the distribution section below for its full range.
- What does the Mato Grosso Lancehead eat?
- Bothrops mattogrossensis is known to eat mammals, frogs, lizards, other snakes, and centipedes, giving it a varied diet compared to other pit vipers such as B. neuweidi.
- Why is it called the Mato Grosso Lancehead?
- The name mattogrossensis comes from the name of the area the species was first found in, Mato Grosso. Amaral misspelt the area name as Matto-Grosso in his paper, and so the "proper" name is believed to be matogrossensis. However, the original spelling is the official name and so it is expected to be spelt as such in official papers.
If you are bitten by the Mato Grosso Lancehead
Do
- Get away from the snake and stay calm. Most bites worsen when people panic or try again to handle the snake.
- Call 911 or Poison Control (1-800-222-1222) right away. Antivenom works best when given early.
- Note the time of the bite and, from a safe distance, the snake's color and pattern, a phone photo is enough. Do not chase it.
- Keep the bitten limb still and at roughly heart level. Sit or lie down and limit movement.
- Remove rings, watches, and tight clothing near the bite before swelling starts.
- Gently wash the bite with soap and water and cover it with a clean, dry dressing.
Do not
- Do not cut the wound or try to suck out the venom.
- Do not apply a tourniquet or ice.
- Do not drink alcohol or caffeine.
- Do not take aspirin or ibuprofen, they can worsen bleeding. Acetaminophen is safer for pain.
- Do not try to catch or kill the snake. A dead snake can still bite by reflex.
First-aid guidance adapted from the U.S. Centers for Disease Control and Prevention (CDC NIOSH), Venomous Snakes. Educational only; always follow the instructions of emergency responders.
Where it is found
More Viperidae snakes
Classification
How scientists group this snake, from the broadest category down to the exact species. Each step narrows to its closest relatives.
Keep learning
- Are Snakes Dangerous? The Real Risk, in PerspectiveMost snakes are harmless and avoid people. Here is the honest picture of snakebite risk worldwide and how to lower your own.
- Snakebite First Aid: What to Do (and What Never to Do)A clear, CDC-based guide to snakebite first aid: the steps that help, the popular myths that hurt, and how to tell a serious bite from a minor one.
- Venomous vs Nonvenomous: How to Tell the DifferenceThe folk rules for telling venomous snakes apart, where each one fails, and why location-based identification beats guessing by sight.
- What to Do If You Find a SnakeFound a snake at home or on a trail? Here is how to stay calm, give it space, identify it safely, and know when to call a professional.
Distribution from GBIF & iNaturalist. Venom status per CDC. Background: Wikipedia. Informational only. Never handle a snake to identify it.