VERTEBRATE REMAINS, PORT KENNEDY BONE DEPOSIT. 239 



and the sectorial. In the latter the metaconid is well-developed ; the protoconicl and 

 paraconid are broken away. The basin of the heel has much the form of that of 

 L. canadensis, and the external cutting edge is notched in front. The first pre- 

 molar is longitudinal in position, but the anterior root of the second premolar is 

 interior to the middle line. The internal root of the third premolar is near the 

 middle of the superior face of the ramus, but the interior root is anterior to the 

 internal border of the anterior root of the second premolar. Both are close to the 

 canine alveolus. The crown of a premolar was displaced and adherent in the 

 alveolus of the root of the paraconid of the sectorial. This crown probably belongs 

 to the second premolar. It has no lobe on its posterior edge, and is expanded pos- 

 teriorly at the base. The superior tubercular has lost its paracone and metacone. 

 The interior part of the crown is a broad table with the protocone as an obtuse 

 cusp on the interno-anterior border, with a cingulum at its base. This part of the 

 tooth is much like that of L. canadensis, but is not so convex posteriorly. 



Measurements. 



mm. 



Length of inferior molar series ; 32 



" " premolar series ; 15 



" " sectorial ; 14 



Width of heel of sectorial at protoconid; 5.5 



Length of ramus posterior to m^ ; 22 



" of base of coronoid ; 15 



Elevation of coronoid posteriorly ; 1 6 



" of condyle above angle ; 12 



Depth of ramus at pm^ ; 13 



" " at m T , posterior root ; 11 



Anteroposterior diameter of m- 3 - internally ; 7 



This otter is dedicated to my friend Samuel N. Rhoads, whose papers on North 

 American mammalia have materially advanced the knowledge of the subject. 



TAX IDEA Waterh. 



TAXIDEA AMERICANA Bodd. 



Both premaxillary and maxillary bones with the teeth, and the attached left 

 mandibular ramus are all that represent the badger. The dentition of both jaws is, 

 however, so well preserved as to place the identification beyond question. The 

 specimen shows that the badger already existed in the east at this geologic epoch ; 

 as I have already shown that it existed in the region now drained by the Columbia 

 River, at the same time. 



MACH/ERODUS Kaup. 



This remarkable genus of cats existed in Asia and Europe during late 

 Neocene times, and in Europe during Plistocene time, having been the contempo- 

 rary of the hairy elephant, cave-bear, etc. It has not been certainly detected 

 hitherto in North America, although several species have been referred to it. These 



