The External Anatomy of the Sarcoptes of the Horse

Warburton (1920) has recently published a survey of our present knowledge of the mites of the genus Sarcoptes; from his survey it is clear that in spite of all the work that has been done upon these mites, much of it by most pains-taking anatomists, we are still without an accurate knowledge of the anatomy of any one species of Sarcoptes. This is, in part at any rate, due to the fact that some of the best work was done, by Robin and others, between 1860 and 1865, at a time when microscopes and technique were by no means as highly developed as they now are.