Keeled Rat Snake
Ptyas carinata
Silhouette: Alex Slavenko · PhyloPic
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassSquamata
- FamilyColubridae (Colubrid Snakes)
- GenusPtyas (Asian Rat Snakes)
- SpeciesPtyas carinata (Keeled Rat Snake)
About the Keeled Rat Snake
Ptyas carinata, commonly known as the keeled rat snake, also called King koros is a species of colubrid snake. It is found in Indonesia, Myanmar, Malaysia, Thailand, Philippines, Cambodia, Vietnam, Laos and Singapore. This little known species is probably the largest extant species in the diverse colubrid family that includes just over half of living snake species. Known adult lengths of snakes of this species in Taiwan measured anywhere from 1.21 to 2.75 m (4 ft 0 in to 9 ft 0 in). However, the reportedly maximum size was about 4 m (13 ft 1 in). Males reportedly average slightly larger than females. They are probably opportunistic predators on a variety of prey, such as rodents, though adult lizards are thought to be significant prey in Indonesia.
Media related to Ptyas carinata at Wikimedia Commons Photo by Noel Thomas - MacRitchie North Central Catchment Nature Reserve, Singapore Photo by John Varigos - Mt Rimau, Sipitang - Malaysia Species of Doi Suthep-Pui National Park
Ptyas carinata in Thailand Wikipedia →
Recent sightings of Keeled Rat Snake in Kaeng Krachan National Park
LIVEiNaturalistClosest Relatives at Kaeng Krachan National Park
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Global Distribution
Warmer areas are where this animal is recorded most often.
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Sok National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Khao Luang National Park | 🇹🇭 Thailand | |
| 4 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 5 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 6 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 7 | Sepilok | 🇲🇾 Malaysia |
Quick answers
What are the chances of seeing a Keeled Rat Snake in Kaeng Krachan National Park?
About 10% of wildlife watchers report a Keeled Rat Snake sighting in Kaeng Krachan National Park, based on 6 verified sightings from GBIF citizen-science data.
When is the best time to see Keeled Rat Snake in Kaeng Krachan National Park?
August has the highest sighting rate for Keeled Rat Snake in Kaeng Krachan National Park in our monthly data.