An extensile tongue.    From Wordnet, Princeton University. 

The talus stopped and rolled backward, one of its extensile arms reaching for Incus.    From Wordnik.com.  [Calde of the Long Sun]

"It is time to go," Worsel announced, curling out one extensile eye toward the vanishing orb.    From Wordnik.com.  [Galactic Patrol]

The bladder also is of the nature of membrane, but of membrane peculiar in kind, for it is extensile.    From Wordnik.com.  [The History of Animals] Reference

Ampulla: Orthoptera; an extensile sac between head and prothorax used by the young in escaping from oötheca, and later, in molting.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

When the puncture into the nut is completed one or more eggs are inserted by means of an extensile, thread-like tube, or ovipositor, of the same length as the snout.    From Wordnik.com.  [Northern Nut Growers Association Report of the Proceedings at the Eleventh Annual Meeting Washington, D. C. October 7 and 8, 1920] Reference

The Mylodon, moreover, was furnished with a long extensile tongue like that of the giraffe, which, by one of those beautiful provisions of nature, thus reaches with the aid of its long neck its leafy food.    From Wordnik.com.  [Journal of researches into the geology and natural history of the various countries visited by H.M.S. Beagle] Reference

The whole tongue has a considerable extensile power.    From Wordnik.com.  [The Malay Archipelago, the land of the orang-utan and the bird of paradise; a narrative of travel, with studies of man and nature — Volume 2] Reference

The arteries are highly elastic, being extensile and retractile both in length and breadth.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

It had a long extensile tongue, furnished with a glutinous mucous for securing its insect food.    From Wordnik.com.  [In the Wilds of Africa] Reference

The shower massage on the extensile hose may be the most important invention for fat men, known to man.    From Wordnik.com.  [Neanderpundit] Reference

Omitting these, there are among the larger species, seventeen which are brown, of which twelve are hairy, and two have extensile caudal filaments.    From Wordnik.com.  [A Book of Natural History Young Folks' Library Volume XIV.] Reference

He has got, moreover, as "tall" a tail as the tamanoir, very nearly as long a snout, a mouth equally small, and a tongue as extensive and extensile.    From Wordnik.com.  [The Bush Boys History and Adventures of a Cape Farmer and his Family] Reference

It is, in reality, an ant-eater, with the body of a porcupine, having a long slender snout and an extensile tongue, just like that of other ant-eaters.    From Wordnik.com.  [Quadrupeds, What They Are and Where Found A Book of Zoology for Boys] Reference

This, together with the long extensile tongue -- which is flat shaped and square at the extremity -- shows a peculiar design, answering to the habits of the animal.    From Wordnik.com.  [Bruin The Grand Bear Hunt] Reference

Then suddenly, with a motion rapid as that of the most agile bird, the long cylindrical and readily extensile tongue is darted forth with unerring aim, and the prey is seized and swallowed in a single moment of time.    From Wordnik.com.  [The Seven Great Monarchies Of The Ancient Eastern World, Vol 5. (of 7): Persia The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations.] Reference

In the evening Baby will go out for an airing with the Bearer and Ayah people, and while they dawdle along the dusty road, or sit on kerb-stones and on culvert parapets, he will listen to the extensile tale of their simple sorrows.    From Wordnik.com.  [Twenty-One Days in India; and, the Teapot Series] Reference

A microscopic animalcule (class Protozoa) consisting of a single cell of gelatinous sarcode, the outer layer of which is highly extensile and contractile, and the inner fluid and mobile, so that the shape of the animal is perpetually changing.    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol XIX No 2] Reference

The first one I got had been kept for some time without water, and drank most eagerly when it arrived, in the manner described by Sir Walter Elliot, "by rapidly darting out its long extensile tongue, which it repeated so quickly as to fill the water with froth.".    From Wordnik.com.  [Natural History of the Mammalia of India and Ceylon] Reference

The bill is very long and curved, enabling the bird easily to probe the long flower, and with its extensile cleft tongue pick up the minute insects from the bottom of the tube, where they are caught as if in a trap, their only way of exit being closed by the bill of the bird.    From Wordnik.com.  [The Naturalist in Nicaragua] Reference

The extended jaws of the bear were within twelve inches of the young hunter's face; he could feel the hot breath steaming against his cheeks, and the long extensile tongue almost touched his forehead, vibrating about in rapid sweeps, as if the animal by that means hoped to bring his head within reach!.    From Wordnik.com.  [Bruin The Grand Bear Hunt] Reference

A mouth equally small, and a tongue as extensive and extensile.    From Wordnik.com.  [Popular Adventure Tales] Reference