Complex: BEL. Complex membership is as reported by breeders and community lists; most memberships have not been proven in a lab.
How to recognise it
| Head | Dark brown to black crown, sometimes slightly faded on top; eye stripes present and brighter yellow than a normal. |
|---|---|
| Pattern | Keyhole pattern: each side blotch ('alien head') carries ONE central dot instead of the normal two eyes. Strong flaming rising up the flanks from the belly edge. Thick dorsal stripe running onto the tail. |
| Colour | Browns and intense yellows over a greyish base with deep black; the grey cast under the yellow is the giveaway. |
| Belly | Usually pure white and unmarked; occasional dark 'tracks'. |
| Eyes | Not yet verified against a source. |
| With age | Not yet verified against a source. |
Rows marked "not yet verified" are withheld until they can be cited. Inheritance is the trade's usage unless a source below states it.
Visible in a single copy?
This IS the visible heterozygous form. Reliable in a single-gene animal thanks to the one-dot keyholes plus flaming.
Super form (two copies)
Super Mojave
Not yet verified against a source.
Not yet verified against a source.
Photos

Photo: WingedWolfPsion, CC BY-SA 3.0, via Wikimedia Commons
In combination with other genes

Photo: Kaorte, CC BY-SA 3.0, via Wikimedia Commons
These animals carry several genes at once. The caption lists everything the animal is said to be; none of them shows this gene on its own.
Health and welfare
No gene-linked issue reported in the sources read. That is not proof there is none.
DNA test
A test is listed for Rare Genetics Inc: Mojave (list read 2026-11-13 on MorphMarket's page for that lab). All listed tests
Sources for this page
- Morphpedia: Mojave
https://morphmarket.com/morphpedia/ball-pythons/mojave - MorphMarket Community: Allelic Morphs aka Complexes (list last updated Sept 2022)
https://community.morphmarket.com/t/allelic-morphs-aka-complexes-ball-pythons/113 - ProHerper: BEL complex overview
https://proherper-frontend-prod.vercel.app/knowledge/insights/bel-complex