A tabby is any domestic cat (Felis catus) that has a coat featuring distinctive stripes, dots, lines . The dominant A expresses the underlying tabby pattern, while the recessive non-agouti or "hypermelanistic" allele, a, does not. Solid-color (black. Aug 17, - Today is designated as National Black Cat Appreciation Day. It is a tribute—if you will—to any “solid black” domestic cat of pure or mixed breed Missing: striped | Must include: striped.