Viperidae
Gloydius changdaoensis
VenomousThis species has no widely used English common name.



3 photographs of the Gloydius changdaoensis. (c) fhvc, some rights reserved (CC BY-NC).
Gloydius changdaoensis 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 Gloydius changdaoensis
Gloydius changdaoensis is a species of Asian moccasin from Shandong Province, China. The name changdaoensis comes from the area it was first discovered in, Changdao County. As with all pit vipers, it is venomous. It has been named (as G. lijianlii) as one of the 30 most endangered viper species in 2016.
Taxonomy
It has been suggested to be synonymised with G. lijianlii by Simonov et al. in 2017 and Asadi et al. in 2019, but there has been no further support, so the validity of them as separate species is currently uncertain.
Previously considered a subspecies of G. intermedius or G. saxatilis, it has now been suggested as a full species due to its molecular distance from G. intermedius.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Gloydius changdaoensis
- Is the Gloydius changdaoensis venomous?
- Yes. The Gloydius changdaoensis 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 Gloydius changdaoensis poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Gloydius changdaoensis is venomous, delivering venom through a bite.
- Is the Gloydius changdaoensis 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 Gloydius changdaoensis live?
- The Gloydius changdaoensis has verified records in 1 country, including China. See the distribution section below for its full range.
If you are bitten by the Gloydius changdaoensis
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.







