Tabby is a pattern, not a breed: the four tabby coat types in cats

Walk into any shelter in India and at least half the cats will have stripes, swirls, or spots on their coats. Most people call them tabbies and leave it there, as if tabby were a breed like Persian or Siamese. It isn't. Tabby is a coat pattern, one produced by a specific gene, and it appears in Bengals, Abyssinians, Maine Coons, British Shorthairs, and street cats with equal ease. The pattern itself comes in four distinct forms, each with its own look and its own name.

The tabby pattern is not a quirk of selective breeding. It is the ancestral coat of the domestic cat's wild predecessor, Felis lybica, the African wildcat. That original coat was a mackerel tabby, vertical stripes over a lighter ground, and it served as camouflage in dry, grassy terrain. When cats were domesticated roughly ten thousand years ago, they carried that gene with them. Today, even a solid black or white cat often carries a masked version of it. In kittens, the pattern sometimes shows through before pigment fully develops, which is why a black kitten can look faintly striped in bright light. The gene responsible is the Agouti gene. In tabby cats, individual hairs are banded with alternating light and dark pigment, a quality called agouti banding. A separate modifier gene, Tabby (T), then determines which of the four patterns appears. Non-tabby solid cats have a non-agouti mutation that suppresses the banding on the hair shaft, hiding the pattern entirely.

The mackerel tabby is the pattern most people picture when they hear the word. Narrow, parallel stripes run vertically down the body from a dark spine line, like the bones of a fish, which is exactly where the name comes from. The stripes are relatively even and do not branch into large whorls. On the legs and tail, the stripes become rings. On the forehead, all tabbies share the same marking: an M-shape above the eyes, which is a fixed feature of the pattern regardless of which of the four types a cat carries. Mackerel is the most common tabby pattern worldwide and the one closest to the wildcat ancestor. In Indian street cats, Indie cats, mackerel is by far the dominant form, which makes sense given how little deliberate coat selection has happened in that population over generations.

The classic tabby, sometimes called the blotched tabby, carries bold, swirling whorls on the flanks rather than clean vertical stripes. The pattern looks almost marbled, with a large oyster-shaped whorl on each side of the body and a bullseye at its centre. The spine carries a broad, dark stripe, and the legs and tail remain ringed. Classic tabby is a recessive trait, both parents must carry the gene for it to appear, which is why it is less common than mackerel in free-ranging cat populations but more common in pedigree breeds where breeders have deliberately selected for it. British Shorthairs, for instance, show a high proportion of classic tabbies. The swirling pattern can look dramatic on a broad-bodied cat, which has made it a popular choice in show breeding.

The spotted tabby looks like a separate category but is genetically a modification of either mackerel or classic. A modifier gene breaks the stripes or whorls into discrete spots, which can range from large rosettes to small, round dots scattered across the flanks. The spine line often remains intact, and the legs and tail keep their rings. Spotted tabbies are well known in the Bengal and the Egyptian Mau, where the pattern is a defining breed feature. In the Bengal, the spots are specifically bred to resemble those of a wild leopard cat, the breed's partial wild ancestor. In Indie cats, spotted coats do appear but are less common than mackerel. The size and shape of the spots varies considerably between individuals, and a cat with very small, evenly distributed spots can look almost ticked from a distance.

The ticked tabby carries the agouti banding on every hair but shows almost no body striping. From a distance, the coat looks plain, a warm, sandy, or golden ground colour with no obvious pattern. Look closely, and the individual hairs shift from a pale base to a dark tip in two or three bands. The legs and tail usually carry faint rings, and the M on the forehead is present, but the flanks are nearly unmarked. The Abyssinian is the breed most associated with the ticked pattern, and in that breed it has been selected to be as clean and even as possible. The Somali, the long-haired version of the Abyssinian, carries the same ticked coat. Ticked tabbies are also common in Singapura cats. In Indie cats, a lightly ticked coat sometimes appears and is often mistaken for a solid coat by owners who have not looked closely. The ticked pattern is dominant over both mackerel and classic, which is one reason it spread widely in free-ranging populations wherever Abyssinian-type cats were historically present. A cat with one copy of the ticked gene will show the ticked coat even if it carries mackerel or classic underneath. Understanding which pattern your cat carries is largely an exercise in looking carefully, at the flanks, the legs, the individual hairs, and knowing that the M on the forehead is the one constant that ties all four together.