All species

Ball Python

Python regius

The most morph-rich snake in the hobby — hundreds of base genes combine into endless designer combos. These are the foundation genes you'll see named in listings.

Recessive10

Needs two copies to show. One copy is a hidden 'het' carrier — visually normal, but it passes the gene on.

Albino

Amelanistic

No black pigment — high-contrast yellow and white.

Piebald

Pied

Patches of pure white broken by normal-patterned colour.

Clown

Reduced, connected pattern with a clean dorsal stripe and bright head.

Lavender Albino

Albino base over a lavender-grey ground — yellow on lilac.

Caramel Albino

A 'tyrosinase-positive' albino — warm caramel and butterscotch tones.

Ghost

Hypomelanistic

Muted, washed-out melanin giving a soft, smoky look.

Axanthic

No yellow/red pigment — a black, white and grey snake.

Desert Ghost

DG

Reduced black with glowing gold sides; a combo-maker's favourite.

Genetic Stripe

A single continuous dorsal stripe down the full body.

Leopard

Broken, spotted pattern that adds 'leopard' detailing to combos.

Incomplete dominant10

Shows with one copy, and shows differently with two (the 'super' form). Commonly — if loosely — called 'co-dom' in the hobby.

Pastel

Brightens colour and lightens the head — the hobby's workhorse gene.

Super form: Super Pastel

Mojave

Clean flames and a bright belly; part of the blue-eyed-lucy complex.

Super form: Blue-Eyed Leucistic (in complex)

Fire

Lightens and adds contrast; the super is a near-white black-eyed animal.

Super form: Black-Eyed Leucistic

Yellow Belly

Subtle on its own — clean belly and side flecks; super is an ivory snake.

Super form: Ivory

Enchi

Warms colour to orange and breaks up the pattern.

Super form: Super Enchi

Cinnamon

Rich chocolate tones; the super is a solid dark snake.

Super form: Super Cinnamon

Black Pastel

Deep, dark colour — the super goes nearly solid black.

Super form: Super Black Pastel

GHI

Gotta Have It

Darkens and adds a metallic sheen prized in combos.

Super form: Super GHI

Banana

Coral Glow

Lavender base with banana-yellow blotches; sex-linked inheritance quirk.

Super form: Super Banana

Spotnose

Distinct nose stamp and bright, busy pattern.

Super form: Super Spotnose

Dominant4

Shows with one copy and looks the same with two — there's no distinct super form.

Pinstripe

Thin, racing-stripe pattern with reduced side markings.

Welfare note

Spider

Thin, web-like pattern with a bright background.

Linked to a neurological 'wobble'. Many keepers avoid breeding it on welfare grounds.

Welfare note

Champagne

Reduced pattern with a warm tan dorsal and clean sides.

Mild wobble in some animals; the super form is generally non-viable.

Welfare note

Hidden Gene Woma

HGW

Reduced banding and a clean dorsal; strong combo gene.

Possible 'duckbill' / mild neuro traits in some lines.

Polygenic1

Built by selectively breeding many small genes over generations, not a single switch. Results vary by line.

Hypo (line-bred)

Reduced pattern and softened colour built up by selective breeding.

This is the basic guide. Combos, allelic complexes, het probability math and full morph history live in Codex.