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I created these pictures to go with the descriptions of some of the different markings that rats can have.  This is not a complete list and does include standardized and non-standardized markings.  Please do not use these images anywhere, as I created them strictly for Phoenix Ashes Rattery.


Self, or solid, rats actually lack markings at all.  An ideal self rat will have no white on it at all, unless it is a white rat, with the color including the nail.  This applies to both agouti and non-agouti type rats.

Genetics:  H/H

American Berkshire

The american berkshire marking is the preferred berkshire marking standard in most, if not all clubs.  American berkshire marked rats should have an entirely white stomach, white feet, and a colored back.  The division between color and white should be sharp and without ragged edges.  White can be seen on the tip of the tail, but should not exceed halfway.

Genetics:  H/h

English Berkshire

English, or classic, berkshire, rats are similar to american berkshire rats but have less white on their stomachs and tail.  The division between color and white should be clean and sharp.  The white found on the tip of the tail should not exceed a quarter of the tail.

Genetics: H/h

American Irish

American irish rats have a white marking, usually round, on the lower abdomen, white feet, and a white tip on the tail.  The marking should be as sharp and even as possible, without extending onto the sides, chest, or legs.

Genetics: H/h

English Irish

English irish rats should have a equilateral triangle on the chest with possibly white on the feet.  The rest of the body should be colored  The marking should be sharp and without brindling.  It is okay to have a small white tip on the tail.

Genetics: H/h


The ideal hooded rat is colored on its head, neck, shoulders, and chest with a stripe going down the spine all the way to the base of the tail.  The hood should cover the entire head without white on the chin, chest, or throat.  The saddle should be an even, unbroken line with color extending partially down the tail.

Genetics: h/h


The bareback rat is very similar to the hooded rat, but without the saddle down the spine.  A bareback rat should have no spotting on its back with a clean distinction between the colored head and the white body.

Genetics: h/h


Capped rats have a colored face with the coloring not extending passed the ears or throat.


Genetics: h/h + modifiers


Badger is the UK standard for the blazed american berkshire.  Blazed berkshire rats have an increased incidence of the disease megacolon due to dominant blazes being associated with high white genes.  The blaze should be as symmetrical as possible and coloring should extend partway down the tail.

Genetics: H/h + modifiers


Banded rats have a colored head with a thick, shoulder length band of color down the spine and throughout the tail.  The underside of the rat is white, including the chin.  A blaze is preferred.  This marking can be associated with megacolon.

Genetics: H/h + modifiers


The masked marking should cover the face, around the eyes and above the nose.  It should not extend down the face or under the chin.

Genetics: Believed to be a variation of BEW or the patched marking.

Know more?  Let me know!


Patched rats will have a small blotch of color on the face.  This marking may be associated with megacolon.

Know more?  Let me know!


The classic variegated marking consists of a colored head and shoulders and numerous small blotches of color on the back.  The abdomen should be white and a head spot or blaze should be present.  Some rats may have white lips and/or a white line extending from the chin to the abdomen.

Genetics: H/h + modifiers


Variegated  Berkshire (Veriberk)

Related to the classic variegated, veriberks are berkshire rats with mottled edges between the colored back and the white stomach. A blaze or head spot should be present, and the rat may have white lips or a white line extending from the chin to the stomach.

Genetics: H/h + modifiers



The dalmatian marking is related to the variegated marking.  This marking consists of a white rat with various non-symmetrical marks of color on the back and the head.  This marking normally does not have a hood.  Spots of color should be seen on the tail as well.

Genetics: H/h


Cap-stripe marked rats have a cap, which may or may not have a blaze, and an unconnected uniform line down the spine that does not touch the tail.  This, like other high-white markings has an increased incidence of megacolon.





Last Updated: 05/01/06

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