By Bil Gilbert. ISBN 0-8164-0842-9. Amazon reader "This book is one of the few available about coatis, that raccoon like, primate like, troop living denizen of the deserts and mountains of the Southwest. The book is a story of a family of field workers too. Good read."
This is one of my favorite natural history books -- the coatimundis are fascinating and so is the author's family. In the version I read there were lots of great photos but the copy I found most recently didn't have any at all.