Cope.] 150 [Oct. 16 



very expensive, owing to the great inequalities of the country. It is not 

 unlikely that at some future day, this coal will have an outlet to Tuxpan 

 on the coast, which is due east from Zacualtipan. 



Finally I refer to Dr. F. M. Endlich for information as to the quality of 

 the coal and its availability for industrial purposes. 



I add that several of the properties are in the state of Vera Cruz just 



over the line. The Galiana property is near the small village of Tehui- 



chila, Vera Cruz. 



Description of fossils. 



HlPPOTHERIUM PENINSULATUM, Sp. nOV. 



Crown of superior molar long, curved. Grinding face with anteropos- 

 terior diameter considerably exceeding the transverse. Internal column 

 large, its section a narrow anteroposterior oval, with both borders convex. 

 Internal enamel borders of internal crescents with a prominent loop at 

 junction, the posterior one with its posterior loop much smaller than the 

 column. A subquadrate area between the internal parts of the lakes, is 

 connected by an enamel ridge with the anterior lake. Opposite and adja- 

 cent enamel borders of the lakes, with several close and deep plica- 

 tions, which nearly cut off the adjacent horns. In like manner the poste- 

 rior horn of the posterior lake, and the anterior horn of the anterior lake 

 are almost cut ofl by the deep complex infolding of the anterior and poste- 

 rior borders respectively. The median and anterior external ribs of the 

 crown are well developed, and there is but little cement on the grooves. 



Measurements. M. 



Length of root, less crown , 050 



_.. , . ,. e f anteroposterior 018 



Diameters of grinding lace^ r 



I transverse 015 



This superior molar tooth indicates a small species of the genus, and one 

 which is entirely typical in form. The plication of the enamel is greater 

 than in any other species excepting the E. gracile. It resembles most of 

 all the E. venustum of Leidy, which is of similar dimensions. In that 

 species the style has a nearly circular section according to Leidy, which 

 distinguishes it satisfactorily. 



From the Loup Fork Shales of Tehuichila, Vera Cruz. 



Protohippus castilli, sp. nov. 



This horse is represented by a superior molar tooth of a larger animal 

 than the species last described, and one only a little smaller than the zebra. 

 It possesses the internal loops of the two internal crescents as in Hippi- 

 dium and Protohippus, and without the bones of the feet it is impossible 

 to determine to which genus it should be referred. The indication that it 

 is a Hippidium, is derived from the relative proportions of the internal 

 loops. The anterior of these is much larger than the posterior, and occu- 

 pies the median position of the internal edge of the crown like the column 

 in Hippotherium. Further approach to that genus is made by the con- 



