<Li> Harlequin and black <Ul> <Li> Black: The colour is a glossy black . White markings on the chest and toes are not desirable and considered faults . </Li> <Li> Harlequin: The base colour is pure white with black torn patches irregularly and well distributed over the entire body; a pure white neck is preferred . The black patches should never be large enough to give the appearance of a blanket, nor so small as to give a stippled or dappled effect . Eligible, but less desirable, are a few small grey patches (this grey is consistent with a merle marking) or a white base with single black hairs showing through, which tend to give a salt and pepper or dirty effect . Grey merle (Grautiger) dogs are acceptable in conformation shows under the FCI as the grey merle dogs can produce correctly marked black / white harlequin dogs, depending on the combinations . The aim for deleting the colour grey merle as a disqualifying fault is to provide a wider gene pool . Their status is that they are "neither desirable nor to be disqualified". Consequently, this colour must never obtain the highest grading at dog shows . </Li> <Li> Mantle (in some countries referred to as Bostons due to the similar coloration and pattern as a Boston Terrier): The colour is black and white with a solid black blanket extending over the body; black skull with white muzzle; white blaze is optional; whole white collar preferred; a white chest; white on part or whole of forelegs and hind legs; white tipped black tail . A small white marking in the black blanket is acceptable, as is a break in the white collar . </Li> </Ul> </Li> <Ul> <Li> Black: The colour is a glossy black . White markings on the chest and toes are not desirable and considered faults . </Li> <Li> Harlequin: The base colour is pure white with black torn patches irregularly and well distributed over the entire body; a pure white neck is preferred . The black patches should never be large enough to give the appearance of a blanket, nor so small as to give a stippled or dappled effect . Eligible, but less desirable, are a few small grey patches (this grey is consistent with a merle marking) or a white base with single black hairs showing through, which tend to give a salt and pepper or dirty effect . Grey merle (Grautiger) dogs are acceptable in conformation shows under the FCI as the grey merle dogs can produce correctly marked black / white harlequin dogs, depending on the combinations . The aim for deleting the colour grey merle as a disqualifying fault is to provide a wider gene pool . Their status is that they are "neither desirable nor to be disqualified". Consequently, this colour must never obtain the highest grading at dog shows . </Li> <Li> Mantle (in some countries referred to as Bostons due to the similar coloration and pattern as a Boston Terrier): The colour is black and white with a solid black blanket extending over the body; black skull with white muzzle; white blaze is optional; whole white collar preferred; a white chest; white on part or whole of forelegs and hind legs; white tipped black tail . A small white marking in the black blanket is acceptable, as is a break in the white collar . </Li> </Ul> <Li> Black: The colour is a glossy black . White markings on the chest and toes are not desirable and considered faults . </Li> <Li> Harlequin: The base colour is pure white with black torn patches irregularly and well distributed over the entire body; a pure white neck is preferred . The black patches should never be large enough to give the appearance of a blanket, nor so small as to give a stippled or dappled effect . Eligible, but less desirable, are a few small grey patches (this grey is consistent with a merle marking) or a white base with single black hairs showing through, which tend to give a salt and pepper or dirty effect . Grey merle (Grautiger) dogs are acceptable in conformation shows under the FCI as the grey merle dogs can produce correctly marked black / white harlequin dogs, depending on the combinations . The aim for deleting the colour grey merle as a disqualifying fault is to provide a wider gene pool . Their status is that they are "neither desirable nor to be disqualified". Consequently, this colour must never obtain the highest grading at dog shows . </Li>

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