448 PROCEEDINGS OF THE ACADEMY OF [1895. 



by four species, of which the most abundant is the red lynx, L. rufus. 

 There is a smaller cat represented by mandibular ramus, which 

 resembles in characters and in size the corresponding parts of the 

 eyra, with which it seems to be identical. There are three inferior 

 premolars, and perhaps a part of a superior sectorial of a cat of the 

 size of the jaguar, which appears to be new to science; and there are 

 several teeth and a part of the lower jaw with teeth, of the large 

 saber-tooth which has been called Smilodon gracilis Cope. Finally 

 a lower sectorial and a premolar indicate an ally of the hyaenas; 

 which is described below as Crocuta inexpectata. The following are 

 the descriptions of the new forms: 



Uncia meroerii sp. nov. This species is represented by three 

 premolar teeth of the lower jaw which belong to two individuals. 

 The posterior part of a superior sectorial tooth accompanies these 

 remains, and may belong to the same species. These teeth belong 

 to an animal of the dimensions of the jaguar, and the inferior pre- 

 molars have the posterior heel and lobe, and anterior basal lobe, well 

 developed. The horizontal section of the principal cusp is lenticular, 

 without much difference in the degree of convexity of the outlines. 

 The teeth differ from those of both the jaguar and puma in the 

 greater .elevation of both the posterior heel and lobe, which are 

 separated from each other by deep incisions. The posterior part of 

 the crown is narrower posteriorly, especially in the anterior tooth, 

 which differs more in all the points mentioned than does the posterior 

 tooth. Enamel smooth. Length of crown of p. m. I, 21 mm ; width 

 of do. posteriorly 9 mm. ; elevation of do. 14 mm. Length of crown 

 of p. m. II, 16 mm.; width of do. 7.5 mm.; elevation of do. 8.5 

 mm. This species is smaller than the X T ncia atrox Leidy, which 

 equals the lion, and which differs also in the much simpler character 

 of the second premolar. It is dedicated to Mr. Henry C. Mercer in 

 recognition of his indefatigable labors in cave exploration. 



Smilodon gracilis Cope, American Naturalist, 1880, p. 857. 

 This saber-tooth is represented by a considerable part of a superior 

 canine tooth, from which more than half of the apex has been broken 

 off. At the same time and place w T ere found an entire left superior 

 sectorial ; part of a second left superior sectorial; part of a right 

 mandibular ramus containing the sectorial and first premolar teeth; 

 the crown of a second left inferior sectorial, and three incisors. 

 There are several bones in the collection, including ungual pha- 

 langes, which probably belong to the same animal. 



This is the largest feline discovered in the formation, equaling the 

 Machcerodus cvltridens of the European caves, but not reaching the 

 dimensions of the South American Smilodon neogaetis. The edges 

 of the crown of the canine, of which 20 mm. are preserved, are 

 not denticulate. The anterior lobe of the superior sectorial is large, 

 but the preanterior lobe is very small. The protocone forms an 



