October 7, 2026
At first glance, the Xoloitzcuintli and the Peruvian Hairless Dog can look remarkably similar. Both are ancient hairless breeds from Latin America, both have hairless and coated varieties, and both are recognized by the FCI as primitive-type dogs.
Because of this, people often ask us:
“How can I tell a Xoloitzcuintli from a Peruvian Hairless Dog?”
The answer is not simply “by looking at whether the dog has hair.” The differences are found in the overall breed type, body proportions, head, ears, tail, dentition, colours, size and movement.
The Xoloitzcuintli is recognized by the FCI under Standard No. 234, while the Peruvian Hairless Dog is Standard No. 310. Both belong to FCI Group 5, Section 6 — Primitive Type, and neither breed is subject to a working trial.
The two breeds come from different countries:
The FCI definitively recognized the Xoloitzcuintli on 6 November 1961. Its official valid standard was published on 8 October 2012, with the current English standard dated 28 January 2014.
The Peruvian Hairless Dog was definitively recognized by the FCI on 30 June 1981. Its current official valid standard was published on 15 September 2021, with the standard dated 26 October 2021.
So although the breeds are often visually associated with one another, they have different histories, different standards and different breed types.
One of the easiest differences to understand is the proportion of the body.
The Xoloitzcuintli has a body that is slightly longer than it is tall.
The FCI standard describes the body as approximately 10:9 in proportion. This gives the Xolo a slightly rectangular outline.
The Xolo should look balanced and substantial, while remaining elegant and athletic.
The Peruvian Hairless Dog has a more square body format, with height and body length much closer to one another.
This contributes to a different overall silhouette.
Xoloitzcuintli → slightly rectangular
Peruvian Hairless Dog → more square
This difference may be subtle in a casual photograph, but it becomes much easier to see when the dogs are correctly stacked for examination.
Although both breeds are primitive-type dogs, they create a different visual impression.
The Xoloitzcuintli has a strong but elegant construction. The body is lean, muscular and well developed, with moderate bone and a clearly defined structure.
The head is an important part of the Xolo's identity and contributes to its stronger overall appearance.
The Peruvian Hairless Dog has a more elegant, refined and slender appearance. Its standard describes a dog with an elegant structure without appearing coarse.
This is why a Peruvian Hairless Dog can sometimes appear more sighthound-like, while the Xolo often gives a stronger and more substantial impression.
The head is one of the areas where an experienced breed specialist can often distinguish the two breeds.
The Xolo has a:
The FCI standard specifically describes the Xolo head as broad and strong, with a wedge-shaped appearance, and emphasizes its strong, square jaws.
The Peruvian Hairless Dog has a more lupoid, mesocephalic head.
The jaws are not described as strongly developed in the same way as those of the Xolo.
This creates a noticeably different expression and head type when the two breeds are compared side by side.
Both breeds have erect ears, but the shape and proportions are different.
The Xolo has relatively large, long and elegant ears.
They contribute strongly to the characteristic Xolo silhouette and are often described as having a distinctive “bat-ear” appearance.
The Peruvian's ears are generally:
The difference may seem small, but when the dogs are standing correctly, the ears contribute significantly to their different breed type.
The Xoloitzcuintli has an elegant neck that connects smoothly with its body and creates a clean transition toward the topline.
The Peruvian Hairless Dog also has an elegant neck, but the overall body construction and square format create a somewhat different silhouette.
This is another reason why looking at the whole dog is more reliable than focusing on one feature.
A long neck alone does not make a dog a Xolo, just as erect ears alone do not identify a Peruvian Hairless Dog.
The tail is another useful feature.
The Xolo's tail is:
The Peruvian's tail is:
Again, these differences are much easier to appreciate when the dogs are standing in profile.
Dentition is particularly interesting because both breeds have a genetic connection between hairlessness and dental variation.
Both standards recognize hairless and coated varieties, and the dental requirements differ between them.
In the Xoloitzcuintli, incomplete dentition can occur in the hairless variety. The FCI standard also places importance on strong jaws and notes the preference for complete incisors in the hairless variety.
The Peruvian Hairless Dog can also have incomplete dentition in the hairless variety, while the coated variety has stricter dental requirements. The current Peruvian standard specifically addresses missing teeth in the coated variety.
This is one reason why you cannot reliably identify a breed simply by counting teeth.
The complete dental picture needs to be considered together with the dog's overall breed type.
The two breeds also have different colour descriptions in their standards.
The Xolo standard defines accepted colours and also lists colours and patterns that are not accepted, including combinations such as black and tan, brindle, white, sable and merle.
Therefore, colour should always be evaluated according to the actual breed standard rather than informal descriptions.
The Peruvian standard allows a broad range of colours in the hairless variety, including different colour combinations and areas of depigmentation.
For the coated variety, the coat may be any colour or combination of colours except merle.
So colour can provide useful information, but it should not be used alone to identify the breed.
Both breeds have three size varieties, but their size ranges are not the same.
VarietyHeightMiniature25–35 cmIntermediate36–45 cmStandard46–60 cm
The Xolo standard allows an additional 2 cm for dogs of top quality.
VarietyHeightSmall25–40 cmMedium41–50 cmLarge51–65 cm
The Peruvian standard also specifies weight ranges:
VarietyWeightSmall4–8 kgMedium8–12 kgLarge12–30 kg
This means that the size categories do not correspond directly between the two breeds.
For example, a 38 cm dog would be an Intermediate Xoloitzcuintli but falls within the Small Peruvian Hairless Dog range.
This is another important similarity.
Both breeds can be born:
And this is not simply a matter of one breed being “the hairless one” and the other being “the coated one.”
The coated varieties are part of the genetic and breeding structure of both breeds.
For the Xoloitzcuintli, the FCI standard specifically describes the coated variety and permits appropriately constructed coated dogs to participate in breeding under defined conditions. Two coated Xoloitzcuintles are not permitted to be bred together under the standard.
The Peruvian standard also recognizes the coated variety and sets specific rules for its registration and breeding.
There are similarities here, but the breeds should not be treated as identical.
The Xolo is described as:
The breed should not be aggressive.
The combination of attachment to its family and caution around unfamiliar people is an important part of the traditional Xolo temperament.
The Peruvian Hairless Dog is described as:
So there is definitely some overlap between the breeds, but their temperament descriptions in the standards are not identical.
The hairless varieties of both breeds require thoughtful skin care.
However, hairlessness itself does not make the two breeds the same.
Skin colour, pigmentation, sensitivity, tendency toward comedones, dryness and individual skin condition can vary considerably between individual dogs.
This is why skin should be considered a breed-specific care issue rather than a reliable identification feature.
A black hairless Xolo and a black hairless Peruvian may look surprisingly similar from a casual distance.
The difference becomes much clearer when you examine the entire dog.
Sometimes — but not always from a photograph.
A single close-up photograph can be misleading.
A hairless dog photographed:
may be difficult to identify correctly.
An experienced specialist will usually look at the whole dog:
body proportions → head → muzzle → ears → neck → topline → chest → tail → legs → movement → overall breed type.
Movement is particularly useful because breed type is not only about static appearance.
This is why a professional evaluation is much more reliable than trying to identify a breed from one visual feature.
FeatureXoloitzcuintliPeruvian Hairless DogCountry of originMexicoPeruFCI StandardNo. 234No. 310FCI GroupGroup 5, Primitive TypeGroup 5, Primitive TypeDefinitive FCI recognition19611981Body formatSlightly rectangular, approx. 10:9More squareOverall typeStrong, elegant, balancedElegant, refined, slenderHeadBroad, strong, wedge-shapedLupoid, mesocephalicJawsStrong and squareLess strongly developedEarsLarge, long, elegantMedium, broad at base, taperingTailLong and relatively thinLow-set, stronger at baseVarietiesHairless & CoatedHairless & CoatedSizesMiniature, Intermediate, StandardSmall, Medium, LargeSmallest size25–35 cm25–40 cmLargest size46–60 cm51–65 cmWeight in standardNot specifiedSpecifiedDentitionVariable in hairless varietyVariable in hairless varietyWorking trialNoneNone
The Xoloitzcuintli and Peruvian Hairless Dog are not simply two versions of the same hairless dog.
They are two distinct breeds with their own:
Their similarities are real — and that is exactly why they are so often confused.
But once you learn to look beyond “hairless dog” and start looking at breed type, the differences become much easier to see.
For anyone seriously interested in either breed, the most useful approach is not to ask only:
“Does this dog look hairless?”
Instead, ask:
“Does this dog look like a Xoloitzcuintli according to the Xoloitzcuintli standard — or like a Peruvian Hairless Dog according to the Peruvian standard?”
That is where the real difference begins.
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