192 CLASS MAMMALIA. 



The general colour of the head, when considered at first 

 view, is fawn-coloured gray, but examined separately, each 

 hair is of a mouse-coloured gray at its base, and fawn- 

 coloured gray at the point. 



We may notice as somewhat singular that M. Fred. 

 Cuvier has described, in the twelfth volume of the Annals 

 of the Museum, the teeth of the Desman, under the name 

 of this animal. It is apparently a typographical error in 

 the title of the article, and in one passage in the article 

 itself. 



The genus or subgenus of the Chryschlore was founded 

 by the Count Lacepede on a single animal which resembles 

 the Moles in its mode of life, but differs from them in 

 many other respects, and principally in the character of the 

 teeth. In the upper jaw are two strong and sharp incisors ; 

 in the lower are four, two similar to those above, and which 

 exactly correspond with them, and two more, extremely 

 small, placed between the others, and of no great apparent 

 utility. The molars are nine in number in the upper jaw. 

 The three first have each but a single point, and are all si- 

 milar to each other ; the other six are tuberculous. Their 

 general form is that of a triangle, each angle of which pos- 

 sesses a tubercle. The most acute angle is that on the 

 outside of the jaw, and at its base springs an isolated tu- 

 bercle tolerably strong. The last of these teeth, much 

 smaller than the others, is little else than a slender plate, 

 in which, however, the general form of the other molars 

 may be recognised. The lower jaw possesses but eight 

 molars. The three first are single pointed like those in the 

 upper jaw, and the five others have likewise a triangular 

 form with tubercles. They are more slender, and the acute 

 angle is outside. All these teeth are separated by an inter- 

 val equal to their thickness, and it is in the vacuum left thus 

 in one jaw that the teeth of the other are inserted when 



