Yes, of course, ClaireBear, I forgot to mention the "saturation" thing. The "black and orange" turn out grey and sort of peachy-tan on a calico with a very light or muted coat.

The literature I've seen in vets' offices and magazines such as "Cat Fancy" here in the NW US includes torties as a sub-category of "calico" coloration. So, torties, like the patchwork quilt calicos, are also nearly always female.

My dear departed Minnie Meowse was a dark tortoise shell with "white trim" (paw tips, stomach, and under the chin), and my current feline employer, Grisabella RaggMopp, is a medium-long haired tortoise shell with no white patches (she really does look "grey in the dark"); she looks like she's part Maine Coon.