Acid Acid Pattern-altering mutation that produces a distinctive busy, granular pattern unlike any other ball python morph. Heterozygous Acid shows a busy, speckled pattern with dark and light elements interspersed. Homozygous Super Acid shows dramatically intensified pattern disruption. One of the more recently proven loci. Common ›
AxJolliff Axanthic (Jolliff Line) Reduces yellow/red pigment. Jolliff line established in 1997. Less commonly worked with than VPI and TSK lines but confirmed as an independent locus through complementation testing with other axanthic lines. Line-specific ›
AxMJ Axanthic (Markus Jayne Line) Reduces yellow/red pigment. MJ line established by Markus Jayne in 2008. The newest of the four confirmed axanthic lines. Proven independent from VPI, TSK, and Jolliff lines through complementation testing. Line-specific ›
AxTSK Axanthic (TSK Line) Reduces yellow/red pigment, producing a grayscale animal. TSK line was established by The Snake Keeper. Incompatible with VPI, Jolliff, and MJ axanthic lines, confirming a separate locus. TSK line tends to hold its grayscale coloring better with age compared to some other lines, though browning out can still occur. Line-specific ›
AxVPI Axanthic (VPI Line) Reduces yellow/red pigment (xanthophores), producing a grayscale or silver/black/white animal. Pattern shape is normal. VPI line was established by Dave and Tracy Barker at Vida Preciosa International. Incompatible with other axanthic lines (TSK, Jolliff, MJ) — crossing VPI Axanthic with another line produces normal-looking double-het offspring, proving separate genetic loci. Line-specific ›
BEL Blue Eyed Leucistic Complex Major multi-allele locus. Each heterozygous allele produces a distinct morph with its own visual phenotype. Any combination of two alleles from this complex produces a Blue Eyed Leucistic (BEL): a pure white or near-white animal with vivid blue eyes. Core proven alleles: Lesser (lighter color, reduced pattern), Butter (similar to Lesser, sometimes considered the same allele from a different line), Mojave (dark coloration with distinctive "flaming" pattern and patternless belly), Phantom (dark base, reduced pattern), Mystic (dark with subtle purple tones), Russo (lighter with reduced pattern), Special (lighter base), Bamboo (lighter with reduced pattern). The "Daddy" gene is a more recent addition with less extensive documentation. Common ›
Calico Calico Produces random white patches and reduced pattern with enhanced coloration. Heterozygous Calico shows areas of white or faded pigment interspersed with normal pattern, creating a "calico" patchwork effect. The expression is highly variable between individuals. Some sources classify Calico as dominant rather than incomplete dominant. The super form has been debated. Incomplete dom. Common ›
CaramelAlbino Caramel Albino Tyrosinase-positive albinism. Reduces but does not eliminate melanin, producing warm caramel, brown, and yellow tones with lighter eyes. Unlike T- Albino, Caramel Albinos retain some dark pigment. Sometimes called T+ Albino. The relationship to the TYR locus (T- Albino, Candy/Toffee) is debated. Some sources suggest allelism with TYR; others treat it as an independent locus. Ultramel is now known to be a TYRP1 variant (Seidel et al. 2022, PLOS ONE 17:e0264580), a separate gene from both Caramel Albino and the TYR Albino/Candy locus; the earlier suggestion that Ultramel shares a locus with Caramel/Albino is superseded. Line-specific ›
CinnyBP Cinnamon / Black Pastel Complex Dark pigment enhancing locus with two core alleles. Cinnamon (het): deepens and darkens coloration, produces warm brown/cinnamon tones. Black Pastel (het): similar darkening effect with cooler, more charcoal tones. Homozygous forms (Super Cinnamon, Super Black Pastel) are extremely dark, near-solid black animals sometimes called "8-Balls." Cinnamon x Black Pastel compound het also produces a very dark "acts-like-super" animal. Some sources include additional alleles at this locus (Enchi, Het Red Axanthic, Huffman, GHI). The core Cinnamon/Black Pastel allelism is well-proven; extended membership is disputed. Common ›
Clown Clown Major pattern and color mutation. Produces a wide, bold dorsal stripe, dramatically reduced lateral pattern, and enhanced golden-copper coloration. The head pattern is also distinctive with a teardrop or "clown face" marking. One of the most visually striking single-gene morphs. Clown pattern tends to dominate in multi-gene combinations, making it a powerful building block in designer morphs. Line-specific ›
Banana Coral Glow / Banana Produces vivid yellow and lavender/purple coloration with dark freckle-like spots that develop with age. Heterozygous (Banana/Coral Glow) is a striking bright yellow and lavender animal. Homozygous (Super Banana) is lighter with more lavender and less pattern definition. Banana and Coral Glow are the same gene discovered independently by different breeders. IMPORTANT: This gene shows sex-linked inheritance patterns in the XY (males heterogametic; the conventional reptile sex chromosome system in pythons and boas) sex determination system of ball pythons. Male-maker vs female-maker lines affect the sex ratio of visual offspring. The gene is believed to be on one of the sex chromosomes. Common ›
Cryptic Cryptic Subtle recessive mutation that produces a cleaner, slightly faded appearance with subtle pattern modifications. Visual Cryptics can be difficult to distinguish from normal ball pythons without experience. The gene becomes much more visually striking when combined with other morphs. Recessive Line-specific ›
