Reptilia · Squamata
Diadophis punctatusLinnaeus, 1766
Ringneck Snake
Photograph by Benjamin Genter, Public domain, via Wikimedia Commons
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A ground-dwelling, nocturnal, meat-eating snake from the Nearctic region, reaching 870 mm nose to tail.
Also called Ring-necked Snake, Southern Ringneck Snake.
Reptilia › Squamata › Colubridae › Diadophis
- Grows to
- 870mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Nocturnal
- Lives
- Terrestrial
Longer than 63% of all colubrid snakes anyone has measured.
The bar is the rank itself: its length is the share of the family this animal exceeds. The chart below is the family’s real spread, on a logarithmic scale because body length here runs from 98 to 3,800 mm. The solid rule is this animal. Every bar is a count of real species, and nothing on this figure is estimated.
What is known
36 sourced facts, each taken from a named scientific dataset. How to read these.
Cited from a dataset unless a row is marked otherwise.
Standing in the world
- Still living
- Extant
- Conservation status
- Least Concern
- Status assessed · the year the Red List last looked
- 2007
- Population trend
- Stable
The animal itself
- Limbs
- None
- Pupil
- Round
- Venomous
- Yes
- Fangs
- At the back of the mouth
- Body temperature when active · measured in the wild
- 19.56°C67 °F
- Body temp in the wild · mean, when active
- 28°C
mean body temperature of active individuals in nature
body temperature of active animals in nature
Size
- Length snout to vent · greatest recorded
- 459.3mm18 in
- Length nose to tail · greatest recorded
- 870mm2 ft 10 in
- Body mass · greatestcomputed
- 92.39g3.3 oz
- Body mass at hatchingmeasured
- 1.17g0.04 oz
snakes only in this source
computed from length by a family-level allometric equation, not weighed
How it lives
- Diet
- Carnivorous
- How it hunts
- Active foraging
- Active
- Nocturnal
- Where it lives
- Terrestrial
- Habitat
- Forest, Grassland, Savanna, Shrubland
- Biome
- Temperate Broadleaf & Mixed Forests
- Region
- Nearctic
- Mainland or island
- Mainland
- Highest it lives · above sea level
- 2720m
- Range size
- 5,673,540km²
frogs, lizards and salamanders (Grismer and Grismer 2022), invertebrates, frogs, lizards and snakes (Sheldon 2022)
Active (Feldman 2015)
(Beane et al. 2010, Hu et al. 2020), Grismer and Grismer 2022 write diurnal but also say it is found under objects by day
(Hu et al. 2020), semi fossorial (Phillips et al. 2022)
Coastal Plain to 1750 (Beane et al. 2010), 0-2400 (O'Shea 2018), 2718 (Calzada-Arciniega et al. 2021)
Breeding
- Reproduction
- Oviparous
- Average clutch
- 3.9eggs
- Eggs or young per clutch
- 1–11eggs
- Mean clutch
- 4–5eggs
- First breeds at
- 12–24months
(Feldman et al. 2015, Meiri et al. 2019), but there is also a single record of viviparity (Sheldon 2022)
means: 4-5 (Guyer et al. 2019), 2-11 (Beane et al. 2010), 1-10 mean=4.8 (Camper 2019), 1-10 (O'Shea 2018), up to 10 (Grismer and Grismer 2022), 1-10 (Sheldon 2022), 3-4 (Phillips et al. 2022)
Naming and history
- Suborder
- Serpentes
- Infraorder
- Alethinophidia
- Subspecies
- Diadophis punctatus acricus PAULSON 1966 Diadophis punctatus amabilis BAIRD & GIRARD 1853 Diadophis punctatus arnyi KENNICOTT 1859 Diadophis punctatus docilis BAIRD & GIRARD 1853 Diadophis punctatus dugesii VILLADA 1875 Diadophis punctatus edwardsii (MERREM 1820) Diadophis punctatus modestus BOCOURT 1866 Diadophis punctatus occidentalis BLANCHARD 1923 Diadophis punctatus pulchellus BAIRD & GIRARD 1853 Diadophis punctatus punctatus (LINNAEUS 1766) Diadophis punctatus regalis BAIRD & GIRARD 1853 Diadophis punctatus similis BLANCHARD 1923 Diadophis punctatus stictogenys COPE 1860 Diadophis punctatus vandenburgii BLANCHARD 1923
- Described by
- Linnaeus
- Moved to another genus · since it was first described
- Yes
- Described in
- 1766
- Type locality
- USA
Keeping one
2 ft 10 in × 17 in × 2 ft 2 in(87 × 44 × 65 cm)
Minimum length × width × height, for one animal. Bigger is always better.
The standard sizes snakes as a fraction of total length: 1 × 0.5 × 0.75.
Mindestanforderungen an die Haltung von Reptilien (Sachverständigengutachten), German Federal Ministry for Nutrition, Agriculture and Forestry, Animal Welfare Division, 10 January 1997. The standard states these floor areas are recommendations rather than binding limits.
From this animal’s own total length of 2 ft 10 in (870 mm), at 1 × 0.5 × 0.75 times it, following the German federal welfare standard — how this is worked out.
Active animals measured in the wild averaged 67 °F (19.6 °C).
Mean body temperature of active individuals measured in nature. A measurement of the animal, not a setting for a thermostat.
Feeding
A prey item should be between the same width as the widest part of the snake's body and about 1.5 times that width.
Widely used across snake husbandry references. An alternative formulation gives prey at 10-15% of the snake's body mass. This is established practice, not a measurement.
11kJ per day
Worked out for an animal of 92 g, the heaviest recorded for Ringneck Snake — so it is the top of the range, not a figure for a particular animal. Weigh yours and the number will be lower.
An upper estimate, not a feeding target, and not veterinary advice. The equation covers only what an animal burns staying alive, so a growing, gravid or recovering animal needs more — and it was measured on wild animals, which move far more than one in an enclosure. Body condition and a vet who knows the species are what a feeding decision should rest on. Where this comes from.
What nobody knows
These are not gaps in our research. No scientific dataset records them for this species — and saying so is information you cannot get from a reference that simply leaves a field out.
- — Length snout to vent · adult female mean
- — Length snout to vent · adult male mean
- — Length snout to vent · adult mean
- — Female length · mean, nose to tail
- — Length nose to tail · adult male mean
- — Length nose to tail · adult mean
- — Largest female · snout to vent
- — Largest male · snout to vent
- — Largest female · shell length
- — Largest male · shell length
- — Hatchling length · snout to vent
- — Hatchling length · nose to tail
- — Largest juvenile · snout to vent
- — Largest juvenile · shell length
- — Egg length
- — Egg width
- — Body mass · a typical adult
- — Body mass · adult female, mean
- — Longest recorded life
- — Preferred body temperature · chosen in a laboratory gradient
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How the young develop
- — Gestation or incubation
- — Clutches in a year
- — Clutches a year · fewest
- — Clutches a year · most
- — Hatchling length · smallest recorded
- — Hatchling length · largest recorded
- — Age at first breeding · female
- — Mature from · youngest recorded
- — Mature by · oldest recorded
- — Size at maturity · smallest recorded
- — Size at maturity · largest recorded
- — Colour on the back
- — Pattern on the back
- — Sex decided by
- — Red List criteria
- — Active season · shortest recorded
- — Active season · longest recorded
- — Density · lowest recorded
- — Density · highest recorded
- — Home range · largest recorded
- — Active in
- — Lowest it lives · above sea level
Others in Colubridae
Take this data
Everything on this page is available as data under CC BY 4.0 — use it freely, credit it, no permission needed.
This species as JSON · the whole dataset
Cite this page
The Reptile & Amphibian Encyclopedia (2026). Diadophis punctatus. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/diadophis-punctatus
@misc{diadophis_punctatus_2026,
title = {Diadophis punctatus},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/diadophis-punctatus}
}Sources
- Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
- Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.
- Catalogue of Life (dataset 3LR), used under CC BY.