48 LECTURE It. 



caucoj differs in being of a brown colour without 

 variegation ; in some, rufous on the breast, and 

 white beneath. 



The two genera of Simla and Lemur may be 

 said to constitute the real or proper Primates t 

 Linnaeus, however, as is well known, places in this 

 order the genus VespertiUo or Bat ; an association 

 which at first appears incongruous, but which is 

 justified by a consideration of many particulars in 

 the structure of those animals ; though not appa- 

 rent at first view; nor will the transition from the 

 genus Lemur to Vespertilio appear too abrupt, if we 

 consider, that in the Linnsean genus Lemur once 

 stood a very curious animal, allied in many points 

 to the rest of that tribe, but so different in others, 

 that it is now, by the common consent of Zoolo- 

 gists, removed from it, and allowed to constitute 

 a distinct genus. It is the Colugo, foraierly called 

 the Filling Lemur ; the Galeopithecus of Pallas, 

 a large animal, measuring about three feet in 

 length, or from head to the extremity of the tail, 

 mid is furnished with expanded lateral membranes, 

 when fully extended, measuring nearly as much : 

 these membranes are not naked, as in the bats, 

 but covered w^ith a furry skin, like the rest of the 



