HOLLAND AND PETERSON: OSTEOLOGY OF THE CHALICOTHEROIDEA. 217 
Subfamily MOROPODIN “4. 
Genus Moropus Marsh. 
. M. oregonensis (Lrrpy), “The Extinct Vertebrate Fauna of the Western Terri- 
tories,” p. 219, Pl. II, fig. 1 (1873). Lophiodon oregonensis Leidy, I. c. 
Bridge Creek Beds, Oregon (Miocene). 
. M. tdistans Marsu, American Journal of Science and Arts (3), Vol. XIV, pp. 
250-251 (1877). 
John Day Beds, Oregon (Lower Miocene). 
. M. senex Marsh, I. c., p. 250 (1877). 
John Day Beds, Oregon (Lower Miocene). 
. M. elatus Mars, I. c., pp. 250-251 (1877). Syn. M. cooki Barbour, Nebraska 
Geol. Survey, Vol. III, pt. 2 (1907). 
Lower Harrison Beds, Nebraska (Lower Miocene). 
. M. petersoni Houuann, Science (New Series), Vol. XXVIII, p. 809 (1908). 
Syn. M. parvus Barbour, Nebraska Geol. Survey, Vol. III, pt. 3, p. 222 (1909). 
Lower Harrison Beds, Nebraska (Lower Miocene). 
. M. matthewi sp. nov. (vide infra). 
Pawnee Beds, Colorado (Middle Miocene). 
. M. hollandi Prrerson, Science (New Series), Vol. XX XVIII, p. 673 (1913). 
Upper Harrison Beds, Nebraska (Middle Miocene). 
. M. maximus sp. nov. (?) Vide infra. 
Lower Harrison Beds, Nebraska (Lower Miocene). 
9. M. merriami sp.nov. (?) vide infra. Moropus sp.? Merriam, Publ. Univ. Cali- 
fornia, Bull. Dept. Geol., Vol. VI, pp. 267-271 (1911). 
Virgin Valley Beds, California (Middle Miocene). 
Genus NESTORITHERIUM Kaup. 
(Synonym Ancylotherium Gaudry.) 
. N. tpentelicum (GaupRyY ET LartTEeT), Comptes Rendus, Vol. XLIII, p. 271 
(1856). = N. pachygnathum Kaup (1859) (nec Rhinoceros pachygnathus 
Wagner). 
Pikermi, Greece (Late Miocene). 
Subfamily MACROTHERIIN A. 
Genus MacrotTHErium Lartet. 
. M. {grande (LaRTET), Comptes Rendus, Vol. IV, pp. 85-93 (1837). 
Sansan, France (Miocene). 
