656 



SCIENCE. 



[N. S. Vol. VII. No.' 173. 



Similarly about 300 feet distant were 

 found the principal ribs wiiich have been 

 selected for this mount, characterized by 

 the very rugose appearance and oblique 

 lines for the insertion of the abdominal 

 muscles (sacrolumbalis, longissimus dorsi). 

 IS'ear these ribs were large jaw and limb- 



correlation of material belonging to differ- 

 ent individuals, this bone-bed gives evi- 

 dence of the existence of only one species 

 of rhinoceros, namely, 2\ fossiger. All the 

 differences observed are due to growth, in- 

 dividual and sexual variations, as set forth 

 below. 



Fig. 1. — Mounted Skeleton of Teleoceras fossiger, one-twentieth natural size. 



bones corresponding in size with those 

 placed in the mounted skeleton. Apart 

 from tliese probable associations, tlie main 

 principle of selection adopted throughout 

 has been that of the age and size standard, 

 after a careful comparison of all the ele- 

 ments. In each region the largest and old- 

 est bones were chosen. Upon this princi- 

 ple the ribs are shown to be of verj!^ great 

 length ; the chest girth exceeds that indi- 

 cated in the Scott-Osborn restoration and 

 equals that in the mount in the Kansas 

 Museum, which has heretofore appeared 

 extreme. In additional support of this 



Comparative Measurements. 



From the above measurements it appears 

 that from head to tail T. fossiger is only six 

 inches shorter than R. unicornis, while the 

 back is eighteen inches (.580 mm.) nearer 



