All measurements of specimens are in millimeters.All MAMMALS collected by Field Agents of the Division are measured in accordance with the following instructions:(1) The TOTAL LENGTH is the distance between the tip of the nose and the end of the tail vertebrae. It is taken by laying the animal on a board, with its nose against a pin or upright post, and by straightening the back and tail by extending the hind legs with one hand while holdingthe head with the other; a pin is then driven into the board at the end of the vertebra.(2) THE LENGTH OF TAIL is the length of the caudal vertebra. It is taken by erecting the tail at right angle to the back, and placing one point of the dividers on the backbone at the very root of the tail, the othei at the tip end of the vertebra.(3) The HIND FOOT is measured by placing one point of the dividers against the end of the heel (calcaneum), the other at the tip of the longest claw, the foot being flattened for this purpose.In measuring the hind foot in dry skins, the foot is fist wrapped in wet absorbent.cotton until the toes can be straightened.
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