Trigonias, Leptaceratherium, Oaenopus, Ronzotherium. 625- 



Subfam. 3. fDiceratheriinae. 



1185. t Trigonias, Lucas, 1900. 

 Lucas, Proc. U. S. Nat. Mus., 1900, XXIII, p. 221. 



6539.tosbornl, Lucas, l.c, 1900, p. 221, pi. 1—4; f Oligocaen. Dakota 

 Osborn, Science, 1900, p. 767, f. 1 ; Hatcher, merid. 



Ann. Carnegie Mus., 1901, p. 135. 



1186. t Leptaceratherium, Osboru, 1898. 



Aceratheriutn, p., Osb. et Wort, 1894. 

 Osboru, Mem. Amer. Mus., 1898, p. 182. 



6540.i-trigonodum, Osb. et Wortm. — (4654, f Oligocaen. Dakota 

 46Ô4); Osborn, Mem. Am. Mus., 1898, merid. 



p. 113, 115, 132, f. 25, 26, 35, 44, pL 12, 

 13, 19. 



1187. fCaenopns, Cope, 1880; Osborn, 1900. 



Aceratherium, p., Cope, 1874. 

 Cope, Amer. Natur., 1880, p. 611. 



6541.tmitis, Cope — {4656); Osborn, Mem. f Oligocaen. Dakota,. 

 Am. Mus., 1898, p. 89, 136, f. 8, 36, 37, 39. Canada. 



2:)umilus, p., Cope, 1886 — (4658). » 



6542. f occidentalis, Leidy — (4651); Osborn, f Oligocaen. Dakota,. 

 ï. c, 1898, p. 90—150, f. 9, 21, 33 — 35; Nebraska, Colorado, 

 pL 13. 16, 19. Canada. 



6543.ttridactylus, Osboru — (4653); id., L c, f Oligocaen. Dakota 

 1898, p. 84—158, f. 4—49, pL 17, 19, 20. Sept, et Merid. 



proavitum, Hatcher — (4691). » 



6544.i-simplicidens, Cope — (4657); Osborn, f Oligocaen.Nebraska. 

 L c, 1898, p. 145, f. 43. 



6545. fcopei, Osboru — (#tf57B);l.c.,p.ll3 — 146, f Oligocaen. Dakota, 

 f. 25—44, pi. 15. 



mite, p., Osb. et Wortm., 1894 (nec » 



Cope). 



1188. t E,onzotherinm, Aymard, 1856; Osborn, 1900. 



Aceratherium, p., Auct., et Trt., 1898. 

 Aymard, Congrès Scient, de France pour 1855 (1856), p. 233, 256. 



6546.tvelaunum, Aymard — (4663); Osborn, f Oligocaen. infer. 

 Bull. Amer. Mus., 1900, p. 234, 235, f. 3, 4. Gallia. 



