Reptilia · Squamata
Oxyrhopus rhombiferDuméril, Bibron, Duméril, 1854
Amazon False Coral Snake
Photograph by Mauro Fossati, CC BY, via iNaturalist
A ground-dwelling, active by day or night, meat-eating snake from the Neotropic region, reaching 900 mm nose to tail.
Reptilia › Squamata › Colubridae › Oxyrhopus
- Grows to
- 900mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Cathemeral
- Lives
- Terrestrial
Longer than 65% 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
34 sourced facts, each taken from a named scientific dataset. How to read these.
Cited from a dataset unless a row is marked otherwise.
Two of these figures disagree
Length snout to vent (greatest recorded) is given as 958, and Length nose to tail (greatest recorded) as 900 — but snout to vent is part of the animal's total length, not more than it. They come from different sources and both are shown exactly as those sources give them.
Standing in the world
- Still living
- Extant
- Conservation status
- Least Concern
- Status assessed · the year the Red List last looked
- 2014
- Population trend
- Stable
The animal itself
- Limbs
- None
- Pupil
- Vertical slit
- Fangs
- At the back of the mouth
Size
- Length snout to vent · adult female mean
- 700mm2 ft 4 in
- Body mass · greatestcomputed
- 230.4g8.1 oz
- Length snout to vent · greatest recordeddisputed
- 958mm3 ft 2 in
- Length nose to tail · greatest recordeddisputed
- 900mm2 ft 11 in
900 mm total length (Feldman et al. 2016), max 758 mm SVL and mean female SVL = 616, n = 22 (Quintela et al. 2020; male n = 52), "can reach 958 mm SVL (Giraudo 2001)." Fiorillo et al. 2021 - perhaps 758?, max SVL 958 mm female (Gaiarsa et al. 2013, also: "smallest mature female was 442 mm SVL (Cunha & Nascimento, 1983) and the smallest mature male was 452 mm SVL (this study")
computed from length by a family-level allometric equation, not weighed
How it lives
- Diet
- Carnivorous
- How it hunts
- Active foraging
- Active
- Cathemeral
- Where it lives
- Terrestrial
- Habitat
- Grassland, Savanna, Shrubland
- Biome
- Tropical & Subtropical Grasslands, Savannas & Shrublands
- Active season · months of the year
- 10–12months
- Region
- Neotropic
- Mainland or island
- Mainland
- Elevation · above sea level
- 186–1241m
- Range size
- 9,202,221km²
Quintela et al. 2020: rodents and lizards, Williams et al. 2022: mainly reptiles, Gaiarsa et al. 2013 (generalist, mainly lizards and mammals)
Rahhal et al. 2023
(Feldman 2015), nocturnal (Fiorillo et al. 2021), nocturnal and crepuscular (Williams et al. 2022), Gaiarsa et al. 2013 ("mainly nocturnal (N = 19; Cechin, 1999... but can also be found active during the day (N = 8;")
(Feldman 2015, Williams et al. 2022), mainly terrestrial (Gaiarsa et al. 2013 )
Breeding
- Reproduction
- Oviparous
- Average clutch
- 10
- Eggs or young per clutch
- 3–17eggs
- Mean clutch
- 8–8.3eggs
- Clutches a year
- 1–2per year
Feldman et al. 2015
midpoint of the reported range — Meiri, 2024, Glob. Ecol. Biogeogr., 33:e13812
mean=8 (Feldman 2015), 3 (Quintela et al. 2020, n = 1, and 4-17 from the literature), 4-17 (Fiorillo et al. 2021), up to 15 (Williams et al. 2022), 4-17 mean 8.3 (Gaiarsa et al. 2013)
Naming and history
- Suborder
- Serpentes
- Infraorder
- Alethinophidia
- Subspecies
- Oxyrhopus rhombifer inaequifasciatus WERNER 1909 Oxyrhopus rhombifer rhombifer DUMÉRIL, BIBRON & DUMÉRIL 1854 Oxyrhopus rhombifer bachmanni (WEYENBERGH 1876)
- Described by
- Duméril, Bibron, Duméril
- Moved to another genus · since it was first described
- No
- Described in
- 1854
- Type locality
- Brazil
Keeping one
2 ft 11 in × 17.5 in × 2 ft 3 in(90 × 45 × 68 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 11 in (900 mm), at 1 × 0.5 × 0.75 times it, following the German federal welfare standard — how this is worked out.
No preferred body temperature has been recorded for Amazon False Coral Snake. Rather than repeat a number from a care sheet, this page leaves it out.
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.
25kJ per day
Worked out for an animal of 230 g, the heaviest recorded for Amazon False Coral 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 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
- — Body mass at hatching
- — Longest recorded life
- — Preferred body temperature · chosen in a laboratory gradient
- — Body temperature when active · measured in the wild
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How the young develop
- — Gestation or incubation
- — Clutches in a year
- — First breeds from · youngest recorded
- — First breeds by · oldest recorded
- — 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
- — Venomous
- — Body temp in the wild · lowest mean recorded
- — Body temp in the wild · highest mean recorded
- — Colour on the back
- — Pattern on the back
- — Sex decided by
- — Red List criteria
- — Density · lowest recorded
- — Density · highest recorded
- — Home range · largest recorded
- — Active in
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). Oxyrhopus rhombifer. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/oxyrhopus-rhombifer
@misc{oxyrhopus_rhombifer_2026,
title = {Oxyrhopus rhombifer},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/oxyrhopus-rhombifer}
}Sources
- Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
- Moura, M. R. et al. TetrapodTraits: a database of 33,281 tetrapod species. Used under CC BY 4.0. Observed values only; this encyclopedia does not publish its imputed predictions.
- Catalogue of Life (dataset 3LR), used under CC BY.
- Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.