BUNOTHERIA. 807 



M. 

 Total transverse extent of atlas 0165 



1 longitudinal 0040 



Diameter centrum of anterior dorsals transverse 0050 



( vertical 0028 



Transverse extent with diapophyses 0110 



Total elevation (oblique) 0130 



Elevation of neural canal 0028 



Length of centra of four consecutive dorsal vertebrje, including spaces for intervertebral discs. .0190 



Diameter of head of humerus^ ^°°S 0090 



( short 0075 



Long diameter of shaft 0045 



Transverse diameter of distal extremity 0110 



Transverse diameter of distal condyles ^ 0070 



vertical 0045 



transverse 0065 



Length of prsesternum 0150 



Widthofpr<estemum|*°t<'"»'-ly 0110 



( posteriorly 0045 



Greatest depth of prfestemum 0080 



Diameters of glenoid cavity of scapula < ^ ' 



< tr 



This species is about the size of the European hedge-hog. The remains 

 representing it were found by myself at the same locality and horizon as 

 the species of Peratherimn above described. 



GEOLABIS Cope 



This genus is established to receive a species which is represented by por- 

 tions of two crania which are not accompanied by either superior or inferior 

 molar teeth. It is very distinct from Peratherium, but whether identical 

 with Domnina or not, it is not yet possible to state. The appearances are 

 that the molar formula is 3-3, and the number of premolars is doubtless as 

 stated, while that of the true molars remains uncertain. There is no canine 

 tooth, and there are three incisors in each premaxillary. The formula will 

 then be 3-0-3-3. The first superior incisor is larger than the others, and 

 is strongly decurved. The first premolar follows a quite short diastema, is 

 two-rooted, and has a simple compressed crown. 



The absence of canine tooth and the enlarged first incisor distinguish 

 this genus from Talpa, and constitute a resemblance to Scalops. In this 

 genus there are four teeth instead of three, posterior to the incisors and an- 

 terior to the true molars, one of which may be fairly regarded as a canine. 



