VERTEBRATE REMAINS, PORT KENNEDY BONE DEPOSIT. 265 



The third superior molar of the left side, which represents this species, is 

 intermediate in dimensions between the corresponding teeth of Holomeniscus sul- 

 catum and Holomeniscus vitakerianus, and is about the size of that of the wapiti 

 [Cervus canadensis). The anterior transverse diameter of the crown is conspicu- 

 ously greater than that of the posterior portion, and the crown contracts in trans- 

 verse diameter from the base to the grinding surface. The anterior horn of the 

 paracone is well developed, and the external wall of the same has a prominent 

 median ridge. The same is true of the metacone, but the median ridge is not so 

 strong, and there is a moderate posterior marginal rim, which is in section the horn. 

 The grinding surfaces of both are continuous with the fused adjacent horns of the 

 protocone and hypocone. No processes of the protocone or hypocone project into 

 the lakes. Enamel smooth. 



Measurements. 



mm. 



(anteroposterior; 26 



Diameters of base of crown I transverse anterior lobe ; 24 



( " posterior " 19.5 



Elevation of paracone ; 14 



" of protocone ; 10 



As this tooth strongly resembles that of some of the Cervidae I may remark 

 that it differs from those of the wapiti and Cervalces americanus in the absence of 

 an intermediate internal basal column or metastyle. From the m- 3 - of a moose, 

 which should abnormally lack the internal column, this tooth differs in the smooth- 

 ness of the enamel and in the more elevated crown. 



CARIACUS Gray. 

 Caricaus l^evicornis Cope, Proc. Acad. Nat. Sci. Phil., 1896, p. 393 (PL XXI, fig. 5). [Type No. 41, Mus. 

 Acad. Nat. Sci. Phil.] 



A series of superior molars of the right side, lacking the last one, represents 

 this species. There were obtained at about the same time the basal parts of the 

 antlers of two deer of the same size, which I suspect to belong to this species. 

 There are various bones of the skeleton of probably the same. 



The true molars have internal basal columns, and the internal crescents send 

 backward and outward processes into the lakes, as in the existing North American 

 species of the genus. The molars are of the size of those of C. virginianus, but 

 the premolars are smaller. The first and second are especially reduced in antero- 

 posterior diameter, and while the third is larger than these, its form is different from 

 that of the corresponding tooth in any species of this genus or of Coassus. The 

 anteroposterior diameter of the crown does not exceed the transverse, and there is 

 no ridge of the external face, such as is present in all the Cervi, but only a slight 

 convexity. This ridge is present but indistinct in the other premolars. It is very 

 strong on the paracone of the true molars, but weak on the metacone. The horns 

 of all the crescents are well developed. The width of the base of the crown of the 

 true molars is greater anteriorly than posteriorly. There are no processes entering 

 the lakes of the premolars such as are usual in the species of Cariacus. 



34 JOURN. A. N. S. PHILA., VOL. XI. 



