Tailless

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Other names: Manx
Genetics: Recessive manxing gene (st/st) with modifiers to determine the length of the tail. Rats with the st/st gene can have anywhere up to 3/4 length tails, down to malformed hips from the spinal column not extending far enough down the back, depending on what modifiers are present as well as the st/st gene.
Description: Tailless rats have a shortened body length which is overall more "rounded" similar to that of a rabbit. Their hind legs should be slightly longer then their front legs, so that when in a resting position the back appears slightly sloped to the front. In totally tailless or "rumpy" manx rats, the judge should feel for where the spine ends. The spine should end just short of where the tail would have begun if it existed. The further up the spine ends- the less desirable. Spines that end just where the hips begin should be faulted. The Manx rat may be smaller then the average rat- this shall not be faulted, but in a close match, larger shall be preferred.
Status: This variety is not recognised in UK rat clubs