No other common breed divides itself quite so neatly. The dachshund is one breed in nine registered forms: three sizes measured at the chest, three coats worn on the body, and every combination of the two kept in the same studbook. The sheet keeps the whole grid because a reader who meets a dvärgtax has met only one cell of it.

The measure that decides the size

The size classes are not weighed but measured. The standard reads the chest circumference of a dog at fifteen months or older: up to thirty centimetres makes a kaninchen, the rabbit dachshund; up to thirty-five makes a miniature, the dvärgtax of the Swedish kennels; above that stands the standard. A dog is therefore not fully classed until it is grown, and a kennel selling a six-week puppy can only promise the size it was bred for, never the size it will measure.

Weight rides along as a rough guide rather than a rule. A miniature is commonly under five kilos, a kaninchen under three and a half, but the chest tape is the authority. This is worth remembering when two countries use different words for the same cell: the miniature of one register is the rabbit dog of another's imagination only if the tape agrees.

The three coats

The smooth coat is the oldest silhouette: short, dense, glossy, the coat the breed's nineteenth-century drawings all show. The long-haired dog carries feathering on ears, legs and tail and a softer outline; the Swedish kennels abbreviate it as långhårig, and it is the coat the miniature wears in most Scandinavian rings. The wire-haired dog keeps a harsh topcoat, a beard and eyebrows, the terrier look that its terrier blood explains.

Each coat is a separate register within the breed, and crossing two coats is restricted or forbidden depending on the country. The reason is practical: coat is a single complex inheritance, and mixing registers in one litter produces coats that belong to neither register and confuse the record.

Why nine forms matter to the sheet

The grid explains the notices. A litter notice that reads "långhårig dvärg" has already told the informed reader the coat, the size class and the likely adult weight. A results line that says a dog won in LD, the Swedish ring's shorthand for långhårig dvärg, is a precise fact in a small vocabulary.

The register inside the ring

The classes at a Scandinavian show sort the grid in the catalogue: a miniature longhair is benched and judged among its own form, and the winners' lists name the form inside the result. The Swedish ring shorthand makes it legible at a glance, and the kennel pages of the era carried the same codes on their own dogs' pages.

For the buyer the lesson is smaller and more practical: the class a puppy will enter is decided by the tape at fifteen months, not by the label in the advertisement. A kennel that sells a kaninchen is selling a measurement it cannot yet take, and the honest ones say so in the notice.

The notice, checked

The classes above follow the FCI standard, which fixes the chest measure and the three coats, and the Swedish ring habit of marking the form inside the class name. The tape measure, not the scale, is the instrument the breed is divided by. The nine forms are therefore not a complication but a precision: the breed wrote its own variation into the register, and the register reads it back faithfully.