who was the artist in late 70's who drew fantasy caricatures of crosses between two animals, such as cat-fish?

Question

whimsical drawings, cartoonish

Answer 1

Was it Jerry Garcia ?

Answer 2

It relies upon on which fringe of the pond you're on. In Europe, somewhat Britain, a black cat crossing your direction is an omen of wealth and prosperity, or commonplace sturdy fortune. So, that's sturdy success. In u . s . a ., it really is perceived as undesirable success, stemming from the Puritan's zealous pursuit of witches (practitioners of the black arts, they so believed). The Puritans believed a witch might want to develop right into a cat, and positively a black witch might want to develop right into a black cat. It wasn't a lot the cat crossing the path that can make Puritans turn round so a cat does no longer pass its direction, yet so the cat does no longer follow the guy homestead and solid an evil spell or suck the breath from their little ones.

Answer 3

perhaps Kliban?

http://www.eatmousies.com/postcards1.html

Most known for the "Kliban cats" but I think he did some other 'crazy' cartoon combinations like you mention:
http://www.coldbacon.com/pics/kliban/bkowl.gif

Another possibility is Shel Silverstein:
http://www.shelsilverstein.com/