1927 Hacienda Zapotitan, Dept., La libertad, Salvador The fourth set was very much like the third but was set on a little ledge under some over hanging brush and roots. Another likely landing spot. Points regarding fresh specimens. 1. Tail - The tail is more or less concave ventrally with a mid ventral line of attachment extending from the base of the tail to the tip. The tail is prehensil. cross-section of tail midventral line of attachment 2. Feet - The heavy padded front feet and the webbed hind feet are covered with little dermal projections that are very adhesive to the touch of my fingers and have a endency to cling to wood when pressed against it and pulled caudally. 3. Teeth - The middle upper incisors are exposed when the lips are closed.