Viperidae
Caatinga Lancehead
VenomousBothrops erythromelas
6 photographs of the Caatinga Lancehead. © Thomaz de Carvalho Callado.
The Caatinga Lancehead (Bothrops erythromelas) is a venomous snake in the Viperidae family, recorded in 1 country.
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 Caatinga Lancehead
Bothrops erythromelas, commonly known as the Caatinga lancehead or the jararaca-da-seca, is a species of venomous snake in the family Viperidae. It is endemic to Brazil.
Etymology
The specific name, erythromelas, is from the Ancient Greek words έρυθρός (érythrós), meaning "red", and μέλας (mélas), meaning "black", referring to this snake's coloration.
Geographic range
It is found in the Brazilian states of Alagoas, Bahia, Ceará, Maranhão, Minas Gerais, Paraíba, Pernambuco, Piauí, Rio Grande do Norte, and Sergipe.
The type locality is "near Juazeiro, State of Bahia, Brazil".
Description
Adults may attain a total length of 54 cm (21 in), which includes a tail 6.5 cm (2.6 in) long. Can grow to a maximum of about 0.85 m.
Dorsally, B. erythromelas is reddish brown, with a double series of black or dark brown triangular markings, which may be alternating or opposite. The head is dark brown on the top and sides, with some darker markings. Ventrally, it is yellowish, speckled with brown, and with dark spots extending from the sides of the ventrals onto the first two dorsal rows. Eyes are moderately large in size, with vertically elliptical pupils.
The strongly keeled dorsal scales are arranged in 21 rows at midbody. Ventrals 144–155; anal plate entire; subcaudals divided 33–35. It's mainly a terrestrial and nocturnal snake, but climb into low vegetation. Tend to hide its head when approached. Highly irascible, can strike violently with minimal provocation. Feeds mainly on rodents and lizards.
Habitat
This species' common name refers to its habitat, the Caatinga, a large ecoregion in northeastern Brazil, which consists of xeric shrubland and thorn forest.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Caatinga Lancehead
- Is the Caatinga Lancehead venomous?
- Yes. The Caatinga Lancehead (Bothrops erythromelas) 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 Caatinga Lancehead poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Caatinga Lancehead is venomous, delivering venom through a bite.
- Is the Caatinga 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 Caatinga Lancehead live?
- The Caatinga Lancehead has verified records in 1 country, including Brazil. See the distribution section below for its full range.
- Why is it called the Caatinga Lancehead?
- The specific name, erythromelas, is from the Ancient Greek words έρυθρός (érythrós), meaning "red", and μέλας (mélas), meaning "black", referring to this snake's coloration.
If you are bitten by the Caatinga 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.