Adjective : a prehensile tail.    From Dictionary.com. 

These diminutive monkeys have long, non-prehensile tails, and they have a silky fur often of varied and beautiful colors.    From Wordnik.com.  [Scientific American Supplement, No. 344, August 5, 1882] Reference

A thin-boned, ancient-Egyptian type of face seems to predominate: narrow hips are general, and slender non-prehensile hands like those of a lizard are everywhere.    From Wordnik.com.  [As I Please] Reference

The remainder of the American monkeys have non-prehensile tails, like those of the monkeys of the Eastern hemisphere; but they consist of several distinct groups, and differ very much in appearance and habits.    From Wordnik.com.  [Scientific American Supplement, No. 344, August 5, 1882] Reference

Wallace, in a residence of four years, saw twenty-one species -- seven with prehensile and fourteen with non-prehensile tails.    From Wordnik.com.  [The Andes and the Amazon Across the Continent of South America] Reference

It is quite extraordinarily non-prehensile in quality and substance nothing is gripped and maintained and developed; it is like the passing of a lax hand over the surfaces of disarranged things.    From Wordnik.com.  [An Englishman Looks at the World] Reference

Its non-prehensile tail, peculiar feet, and different arrangement of teeth, pointed out to naturalists that it entered into a genus distinct from the American opossums; and to this genus the name of.    From Wordnik.com.  [Heads and Tales : or, Anecdotes and Stories of Quadrupeds and Other Beasts, Chiefly Connected with Incidents in the Histories of More or Less Distinguished Men.] Reference

Thus l'Encuerado, whom the evening before we had seen braving tigers, crocodiles, and wild cattle, now trembled at the mere idea of facing an inoffensive animal, which was only a relation of the peccaries, with a snout terminated by a non-prehensile proboscis, yet to which his imagination attributed certain demoniac qualities.    From Wordnik.com.  [Aventures d'un jeune naturaliste. English] Reference