Varieties

Undstandardized

white undercoat (*/wu)

(genotype unknown)

"With the exception of a pearl, a mouse of any standardized colour with a white undercolour. The undercolour to be as white as possible and even throughout, including the belly. Eyes to match standard. The mouse should resemble a non-white undercoat mouse, until the coat is parted."

A very nice agouti white uncercolour mouse, with a good undercolour and nice agouti to boot.

lhs ag/wu Thapsus Restrict and Restrain
b. o. & pic. Meri Orrainen

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Good view of the undercolour.

lhs ag/wu Thapsus Sun Stroke
b. o. & pic. Meri Orrainen

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With chocolate the undercolour behaves in a quite interesting manner...

lh cc/wu Thapsus-mouse
b. o. & pic. Meri Orrainen

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It is possible to get white undercolour on a black mouse.

lh ba/wu Thapsus-mouse

b. o. & pic. Meri Orrainen

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However, on a black mouse the undercolour doesn't always turn out good.

lh ba/wu Thapsus-mouse
b. o. & pic. Meri Orrainen

(Click the pic for larger image.)