228 VERTEBRATE REMAINS, PORT KENNEDY BONE DEPOSIT. 



sions seen in the wolf, but has the characters of the true molars in its greater 

 compression and the more trenchant cusps. The posterior lobe in particular is more 

 prominent and compressed. No cingula. 



Measurements. 



mm. 



tv , (anteroposterior; 16 



Diameters, pmi | verti J. n 5 



( anteroposterior (externally) ; 15 



Diameters, m 1 ^ vertical at paracone ; 10 



( transverse ; 20 



( anteroposterior (externally) ; 8 



Diameters, m^ < vertical at paracone ; 5 



(transverse; 12 



The forms of the cusps and cingula in this species are like those of the corres- 

 ponding teeth of the coyote, except as to the conules. The size is that of the large, 

 but not largest wolves. 



VULPES. 

 Vulpes latidentatus sp. nov. (PI. XVIII, 4, 4a.) [Type No. 60, Mus. Acad. Nat. Sci. Phila.] 



Represented by a first superior true molar of the left side of a dog, of dimensions 

 not differing greatly from those of the red fox. The tooth differs materially in its 

 proportions from the corresponding one of this well-known animal. While the 

 transverse diameter of the crown is not different, the anteroposterior diameter 

 exceeds it, especially at the internal extremity. This is clue to the fact that the 

 protocone is continued forward to opposite the internal extremity of the paraconule, 

 from which it is separated by a deep groove, which is wanting in V. alopex. Its 

 base is continued as a cingulum outward to the middle of the width of the crown, 

 a character wanting in the red fox ; and the paraconule sends a distinct crest 

 forward to the anterior base of the paracone, a feature very faintly indicated in the 

 red fox. External cingulum distinct. 



Measurements of mi. 



mm. 

 Diameter, transverse at middle ; 11.5 



" anteroposterior externally ; 10 



" " internally ; 6 



VUI.PES CINEREOARGENTATUS. 



Two right inferior sectorials agree exactly with those of this species. 



MUSTELA Linn. 



A single species of true weasel left its remains in the bone fissure. It is inter- 

 mediate in dimensions between the fisher and the American pine-marten, and has 

 become quite extinct with so many of its contemporaries. 



