Colubridae
Gervais' Worm Snake
HarmlessCalamaria gervaisii






6 photographs of the Gervais' Worm Snake. © Paolo Co.
The Gervais' Worm Snake (Calamaria gervaisii) is a non-venomous snake in the Colubridae family, recorded in 2 countries.
- Family
- Colubridae
About the Gervais' Worm Snake
Calamaria gervaisii, commonly known as Gervais's worm snake and the Philippine dwarf snake, is a species of small fossorial snake in the subfamily Calamariinae of the family Colubridae. The species is native to the Philippines.
Etymology
The specific name, gervaisii, is in honor of French zoologist Paul Gervais.
Geographic distribution
Calamaria gervaisii is endemic to the Philippine Islands. Its geographic distribution includes the islands of Basilan, Catanduanes, Cebu, Lubang, Luzon, Mindanao, Mindoro, Negros, Panay, Polillo, and Tablas.
Habitat and behavior
Calamaria gervaisii is found from near sea level up to altitudes of 1,000 m (3,281 ft). It lives in forests and plantations, burrowing in the leaf litter and hiding under stones and fallen logs, or between the buttresses of trees.
Description
The longest specimen of Calamaria gervaisii measured by Boulenger (1894) had a total length of 25.5 cm (10.0 in), which included a tail 2.0 cm (0.79 in) long.
Reproduction
Calamaria gervaisii is oviparous.
Conservation status
The IUCN has listed Calamaria gervaisii as being of "least concern" because it has a wide range, appears to be abundant with a stable population, and seems to be tolerant of disturbance to its natural habitat. No particular threats to this species have been identified.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Gervais' Worm Snake
- Is the Gervais' Worm Snake venomous?
- No. The Gervais' Worm Snake (Calamaria gervaisii) is non-venomous and is not considered dangerous to humans. Like most snakes, it will retreat rather than bite when given the chance.
- Is the Gervais' Worm Snake poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Gervais' Worm Snake is neither poisonous nor venomous.
- Is the Gervais' Worm Snake dangerous?
- The Gervais' Worm Snake is not dangerous to humans. It has no medically significant venom and bites only defensively if cornered or handled.
- Where does the Gervais' Worm Snake live?
- The Gervais' Worm Snake has verified records in 2 countries, including Philippines, Indonesia. See the distribution section below for its full range.
- Why is it called the Gervais' Worm Snake?
- The specific name, gervaisii, is in honor of French zoologist Paul Gervais.
Where it is found
More Colubridae snakes
Pink-headed Reed SnakeCalamaria schlegeli
Collared Reed SnakeCalamaria pavimentata
Northern Reed SnakeCalamaria septentrionalis
Variable Reed SnakeCalamaria lumbricoidea
Schmidt's Reed SnakeCalamaria schmidti
Lined Reed SnakeCalamaria griswoldi
Linne's Dwarf SnakeCalamaria linnaei
Lovi’s Reed SnakeCalamaria lovii
Classification
How scientists group this snake, from the broadest category down to the exact species. Each step narrows to its closest relatives.
- OrderThe broad group of scaled reptiles: all snakes and lizards
- Squamata
- FamilyA group of related snakes that share key traits
- Colubridae
- GenusA close-knit group of very similar species
- Calamaria
- SpeciesThis exact snake, named in the two-part scientific name
- Calamaria gervaisii
Keep learning
- 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.
- 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 Is a Snake? Anatomy and the BasicsA clear overview of what makes a snake a snake: limbless body plan, anatomy, evolution from lizards, species diversity, and why they are ectothermic.
- How to Keep Snakes Out of Your Yard and HomeA practical guide to keeping snakes out of your yard and home using habitat changes that work, plus what to skip and what to do if one shows up.
Distribution from GBIF & iNaturalist. Venom status per CDC. Background: Wikipedia. Informational only. Never handle a snake to identify it.