46 



PATAGONIAN EXPEDITIONS: PALEONTOLOGY. 





Measurements. 





Face, length orbit to premaxillary . 



.los 



Astragalus, length of neck on fib 





" dorso-ventral depth at m^ 



.076 



ular side .... 



.015 



Penultimate thoracic, length of cen- 





Calcaneum, length 



.081 



trum 



.031 



" of tuber . 



■043 



Penultimate thoracic, width of ante- 





" width of free end . 



.016 



rior face ..... 



■023 



" " " distal end 



.Oil 



Last thoracic, length of centrum 



.032 



Metatarsal III, length . 



.084 



" " width of posterior face 



.025 



" " proximal width 



.024 



Astragalus, length .... 



.041 



" distal width . 



.025 



" width of trochlea . 



.023 







Localities. — The type of the species was found in the cliffs of the Santa 

 Cruz river, but no locality is given for the types of L. granatum or L. 

 intermisstim. No. 9271 (A. M. N. H.) was collected by Mr. Brown at 

 Mantes Casa, 7 miles south of the Coy River; No. 15,309 by Mr. Peterson 

 20 miles south of Coy Inlet. 



LiCAPHRIUM PYRAMIDATUM AmCghinO. 

 (Plate VI, Figs. 4, 5.) 



Licaphrium pyramidahmi Amegh.; Anales del Mus. Nac. de Buenos Aires, 

 Ser. 3, T. Ill, p. 472. 

 This species is known to me only from casts of the type-specimen, frag- 

 ments of the maxillary and mandible, each with the four last teeth in place. 

 In size and proportions of the teeth this species agrees closely with L. 

 fioweri, but there are certain differences in the pattern which justify the 

 separation. In m- the postero-external cusp (metacone) is more reduced 

 in size and the single internal cusp (protocone) is larger "and has a plane 

 internal face, giving a characteristically pyramidal shape ; the conules, 

 especially the posterior one, are smaller. The lower grinding teeth have 

 less massive cusps and more open valleys, and in mg the postero-internal 

 pillar and talon are more slender, giving quite a different appearance to 



the tooth. 



Measurements. 



P-^, length {i. e., ant.-post. diam.) 



" width {i. e., transverse diameter) 

 Upper molar series, length . 

 Mi, length .... 



" width .... 

 M^, length .... 



014s 



M^, width .... 



.022 



020 



M-3-, length .... 



.014 



047 



" width .... 



.022 



OIS5 



P^, length .... 



.014 



020 



" width .... 



.0125 



0175 



Lower molar series, length . 



.051 



