A tendon locking mechanisms in two climbing rodents, Muscardinus avellanarius and Micromys minutus (Mammalia, Rodentia).    From Wordnik.com.  [Archive 2006-05-01] Reference

The tiny hazel dormouse (Muscardinus avellanarius), weighing about 20 grams and measuring less than three inches, has all but vanished from its former range.    From Wordnik.com.  [Packaging and Converting Essentials] Reference